Ooohhh when is there going to be an akumatized luka?
RIGHT NOW!! :D
Heartrocker is Akumatized Luka, after breaking up with Marinette. 💔
His music creates supersonic waves!
I’d like to think that a special song also makes civilians to fangirl over him, but he’s not interested? He’s just over them/doesn’t want their attention (even though he’s creating them) and he just wants to find Marinette and use his powers to make her love him, or obsessed with him like he kind of is with her. He sends the fans to go find Marinette while he focuses on trying to take the miraculous.
It’s not the right thing to do, but he thinks Marinette doesn’t care about him at all, although he loves her to his core. She didn’t show up to his concert, lied about it, then didn’t even try to protest their breakup. So clearly he’s not over her and wants clarity, which causes his Akumatization. Ofc the breakup was over multiple instances of lying, but the concert was the final straw because she promised him she’d be there, and he was going to perform an original song he wrote just for her.
He ends up putting Ladybug under the same spell, and he’s about to take her miraculous before realizing if he does, Hawkmoth will take away his powers and he can’t get Marinette to love him again. So he ends up just having a depressing therapy session with her, where she convinces him to hand over his akuma object and he can’t be akumatized anymore after that!
Sentimonster designs I came up with bc I was thinking about Argos’s debut in my AU! Bc I’m dumb and I haven’t thought too deep about him as a character to the story yet-
They were originally suppose to all be based on the seven deadly sins, especially Gasumptious (gluttony) and Elvy (envy). But I also wanted to branch into maybe Felix’s other hidden emotions, like his deep love for Kagami and his fear of being replaced by Adrien (Bride and Athazagora).
Argos becomes an official enemy when Dragonbug tells him they need to be destroyed. He defends them, saying they’re just “infants” and can learn how to behave properly with time. But a frustrated and exhausted Dragonbug she tells him they aren’t like humans and are created for one purpose: to serve and destroy. This hits home with Argos, and he develops a fear and hatred for Ladybug and swears his loyalty to Madame Morphisa afterwards in order to take her down and prove just how monstrous he can be.
I’m still kinda trying to find a way to make this concept work in my au. He promised to serve her in exchange for the peacock miraculous, and she wants him to use it to take Ladybug’s miraculous. In a novice attempt, he might have just starting creating multiple sentimonsters that he thought were harmless enough (something she did NOT expect), but they quickly spiraled out of control. It’s much easier to make sentimonsters based on others emotions, because you can predict which one you will create it off of. But instead, he chose his own, which makes it more difficult to tell how the sentimonster will act. I think it would show the aspect that these creatures do have a mind of their own, compared to previous Mayura sentimonsters who were easily controlled by their akumas!!
Red Moon
Red Moon is obviously already canon, but her power is instead hypnosis. If you get caught in her light, you stop whatever you are doing to stare at her. The streets of Paris become like a statue exhibit: countless of unlucky citizens are bathing in her glow, staring at the beauty of the red moon.
Gasumptious
As he devours, Gasumptious grows bigger and bigger. He’ll eat anything, so beware! After finishing most of the city, Gasumptious sits atop the Eiffel Tower and gnaws on its metal posts.
Elvy
Elvy lives in the sewers. She can control water and uses it to drain you of happy memories, which she keeps in floating green orbs and guards for herself.
It’s so silly to me how the manifestation of Felix’s jealousy of Adrien is fought and defeated by Chat Noir, who is Adrien ehehehheeh.
She also sounds like a Pokémon!! Probably like a Lapras, or the one that trills really pretty
Athazagora
A timid creature, Athazagora took over the catacombs, and hides in the shadows. You can hear the creaking and rattling of its wooden limbs in the dark as it stalk you. If you can’t escape, it envelops you in its cloak of darkness, never to be seen again.
Bride
The supposed advisor of Argos. She never leaves his side, and is always whispering something in his ear. To protect Argos, she showcases her ability to turn her arm into a long spear/sword, incredible strength and mobility, and that her body is made of an indestructible crystal.
Plus, he can make multiple sentimonsters bc he’s a sentihuman himself (Other people can’t. You can only make one, kind of like how the Butterfly miraculous can only Akumatize one person at a time, unless they share an object. Current excuse I’m going with that makes semi-sense HEHEHE) . So Lila totally wants to use that to her own advantage!
Ofc he fails, but she’s impressed with his resolve (and the lengths he was willing to go, albeit unintentionally), especially after sharing her goal of destroying Ladybug. Lila was feeling the effects of unification and now has a willing minion to do her bidding whenever she pleases.
If I decide to go with this plot, Lila has to end up forgetting Felix because of the curse. But she doesn’t care: all she really needs is Argos. I might need to retcon her revenge against Felix because of this but idm! It wasn’t very important to the plot anyways!
I was considering having Dragonbug in this episode, since she could use Perfection to snipe Red Moon out of the sky! The lucky charm would be like a wand that creates a sticky translucent web to keep the sentimonsters secure so they can go find their amoks.
And a sentimonster I never ended up including, Ava. I just didn’t have a reason to put her in there but I liked the yin and yang style of her design!!
Akumatized Marinette!! I chose Princess Justice from that one episode where she’s almost akumatized!!
More Info!!
Chat Noir probably wouldn’t get along with Scarabella at first bc she tends to jump in head first without a plan and says she “doesn’t need his help” which made him feel pretty useless 😔 she was just too excited to be Ladybug she didn’t understand what it took to be Ladybug.
Princess Justice is probably more difficult to beat, since she knows Chat Noir’s fight pattern and Scarabella is a complete newbie
An episode like this would really show how being a miraculous holder isn’t for everyone (at least it’s important to have the right one for the person) and Marinette is actually good at her job bc she fits the miraculous, despite her mistakes.
If yall have noticed, I often mention “seasons” when describing the timeline of my AU.
“Choco?? What are these seasons you are talking about? Why are there only three when the show has five??”
Sit down, little one, and let me tell you a story…
AHDKWHSJ JK JK
But anyways-
I have split the events that happen in my AU into seasons because then it’s easier for me to keep my facts and timeline in order! All episodes are in exact order/sequence of events!
Season 1: Gabriel can create sentimonsters.
In this season, it’s establishing the world of Miraculous. Marinette and Adrien is learning how to be miraculous holders while navigating their own lives.
Origins: Marinette becomes Ladybug for the first time alongside Chat Noir to defeat Stormy Weather.
Ladybug and Chat Noir defeat an Akumatized Mylène, Animelle. Together, they visit Master Fu for more information on their new duties.
Marinette has a hard time balancing being Ladybug and her civilian self. Ladybug and Chat Noir have to team up to defeat a game-themed teenage akuma.
Sweetpea: Marinette enters a design challenge with Alix, and Adrien is her model! Rose is akumatized into Sweetpea after a health scare makes her unable to help her team with their design.
To Be or Not to Be: There is a school play, and Chloe will stop at nothing to get the main lead. Ladybug struggles to win over Chat Noir, who seems oblivious to her attempts at flirting.
Boy meets Girl: Marinette develops a crush on the class’s most popular boy after defending Juleka against Chloe. LB and CN battle Reflekta.
Princess Justice: Marinette is chosen to submit a dress design to high-fashion company represented by Chloe’s mother. Jealous of her success, Chloe destroys her project, causing Marinette to be Akumatized.
Fish Food: Ladybug and Chat Noir have to defeat an akuma who goes by the name of Captain Kraken. For the Winter Ball, Marinette makes plans to ask Luka to be her date.
Winter Formal: The winter formal is here, but Marinette is worried about an akuma attack that might ruin her chances with Luka.
Be My Lover: Now that Marinette is officially dating Luka, Adrien’s jealousy becomes more apparent. Chloe’s repetitive and harsh rejections of Kim turns him into Dark Cupid.
Road Rage: Adrien has a fight with Chloe about her behavior towards others, and she acts out once again and Nino is akumatized into a foul-mouthed biker with a vendetta against her.
New Girl: A transfer student is introduced to the class, but Marinette is suspicious of her two-faced behavior.
Prophetica: Marinette’s constant lying and lack of trust makes her and Alya have a fight after she fails to bring cupcakes to her sisters’ birthday party.
Primadonna: After Chloe’s mother decides to take her half-sister to her movie premiere debut instead of her last-minute, Chloe becomes Primadonna and turns Paris into her own personal black-and-white film.
Sabrina seeks Marinette’s help to expose Lila after she comes between Sabrina and Chloe’s friendship.
King of Music: Jagged Stone is akumatized and it is revealed that Luka and Juleka are his children. Marinette’s duties as Ladybug become more demanding and her relationship with Luka strains.
Winter Wonderland: After Chloe misses one of Sabrina’s recitals, she is Akumatized into Ice Queen and turns Paris into an eternal winter.
Marinette misses one of Luka’s concerts, where he was going to debut a song he wrote for her. They break up and he is Akumatized into Heartrocker.
Liar, Liar: Marinette finally tells the class who Lila really is, but they have a hard time believing her. Lila is Akumatized into Miss Miracle and offers her services to Hawkmoth in order to take down Ladybug.
Lila strikes a deal with Gabriel when Adrien invites her over to his home out of pity. Hawkmoth’s identity and motives are revealed. Chat Noir takes Ladybug to see Master Fu for help because of Plagg’s warning against Lila.
A New Guardian: Master Fu makes Ladybug the new Guardian before Lila can get to the Miracle Box.
Goldbug: The peacock miraculous is fixed. Hawkmoth unifies the miraculous to become Shadowmoth. He creates Miss Miracle’s first sentimonster: Goldbug. Marinette becomes Firefly to defeat them both.
The time span for this season is about 4 months, starting in the beginning of Junior year.
Season 2: Emelie wakes up.
This season focuses on the lore of the miraculous. Ladybug unifies miraculous every other episode to defeat both akumas and sentimonsters. Lots of kwami-swaps and unified ladybug happen in this season! (Scarabella, Queen Bee, Carapace, Ladybee, etc.) Marinette is also warming up to Adrien.
Chat Noir is skeptical she’s the right pick to be guardian, and she takes that personally. She decides to unify against Reflekta and her sentimonster, Reflekdoll.
Mr. Midas: After rejecting an expensive present, Chloe’s father is Akumatized into Mr. Midas and wants to turn everything into gold for his beloved daughter. Tigerbug and Chat Noir try and defeat him and his sentimonster.
Sweet Dreams: Ladybug becomes Hercula after a sleepy akuma discreetly puts Paris into an eternal slumber.
A Spider’s Web: Ladybug becomes Mantigirl to defeat Arachnia, a kindergarten teacher who is Akumatized at the Paris Zoo and trapped Adrien and others.
Marinette comes down with a mysterious illness, and so it’s up to Scarabella and Chat Noir to save Paris from an Akumatized grandmother and her gang of angry sentidogs!
The Wailing Lady: Firefly and CN battle against a grieving widow and her sentimonster, a giant willow tree in the middle of Paris who she believes is her deceased spouse.
Sugar and Spice: Marinette faints while working at the bakery. This makes Sabine anxious, and she is Akumatized into Mother Desserts. Marinette and Chat Noir work together to save her.
Tikki suggests giving others different miraculous to help her fight the akumas and sentimonsters. Adrien tells Chloe about his crush on Marinette thanks to Plagg. Chat Noir visits Marinette and takes her on a trip around Paris.
Operation Ladybug: Luka suspects Marinette is Ladybug, and he recruits Alya to help him figure out the truth. Chloe starts treating Marinette with less disdain, much to everyone’s surprise. Firefly and Chat Noir fight another akuma and sentimonster.
Bon Appétit!: Alya’s mother becomes akumatized while working at the hotel. Ladybug and Alya work together while Chat Noir tries to keep Chloe and Sabrina. Alya’s suspicions are confirmed, but she tells Luka to stop digging.
Kwami Captor: After some mischevious kwami escape the miracle box with their jewels, Marinette becomes Multimouse to hunt them all down.
Queen Bee: Chloe decides to use the Bee miraculous she found to try and help Mantigirl and Chat Noir. Her need for attention makes the mission not go according to plan. Chat Noir and Marinette have an argument about his secret identity.
Protector of All: Nino and Adrien are in charge of elitist children for a day while Marinette and the class set up a school sponsor event. When an akuma attacks, it’s up to Nino to protect the kids while Tigerbug and Chat Noir defends them. Luka finally gives up his suspicions.
Miracle Team: The Miracle Team meet up for the first time to take down an akuma. But they struggle to actually work together! Chat Noir breaks up with Marinette, leaving them both devastated.
Soulmates: Marinette and Adrien spend the day together to find a gift for Chloe’s birthday. Nathalie finds out about Gabriel and Lila’s dark deeds with Hawkmoth.
Happy Birthday Chloe!: Chloe’s birthday party goes awry, thanks to Lila’s sabotage, and Chloe is Akumatized.
Sick Day: Marinette is too sick to go to school most days and struggles with night terrors. She is worried about her health, and talks to Tikki about it. Alya, Nino, Luka, and Sabrina try to clear Marinette’s name. Adrien visits Marinette at the bakery.
Marinette vs The World: Marinette’s friends finally has what they need to prove Lila is terrible once and for all. But Adrien isn’t sure it’s the best idea.
Cheer up, Marinette: After unifying once again to defeat an akuma, Marinette’s condition is so bad she is bedridden and cannot celebrate Chinese New Year with her family. The kwamis try to cheer her up. Adrien is growing worried about his father’s health and seeks comfort in Nathalie.
Like Mother, Like Daughter: Chloe’s influencer half-sister, Zoe, comes to Paris. Chloe humiliates her out of hurt and anger, and Zoe is Akumatized into Delightfulee.
Reign of Bourgeois: Chloe’s mother arrives in Paris after hearing about her outburst against Zoe. She is then promptly akumatized into Stylix and takes over the city. What’s worse, she has put a bounty on Chloe’s head.
A Sunny Day: The Miracle Team accepts Vesperia as the new Bee miraculous holder. Her outgoing positivity is welcomed, but her hesitation puts them in danger.
Never Trust a Fox: Trixx abandons Alya and runs away with the fox miraculous, pledging his loyalty to Lila instead. Volpina tricks LB and Chat Noir into thinking she’s on their side. Ladybug has to unify once again in order to defeat her and the akuma once she betrays them.
The Wish, Pt. 1: Because Marinette is out of commission, Scarabella, Vesperia, Carapace, and Chat Noir have to fight against Volpina, The Wailing Lady, and her sentimonster.
The Wish, Pt 2: Gabriel now has the Ladybug and Cat miraculous. Marinette and Adrien follow Volpina to the Agreste mansion, and Adrien learns the hard truth about his father.
By the end of the season, Shadowmoth has completed his mission and trades his life for Emelie’s. A part of Lila’s backstory is revealed.
This season ends at the end of Junior year, breaching into summer.
Season 3: Marinette’s Sacrifice
This is the final season of my AU!
Summer Break: Adrien’s doppelgänger cousin Felix attends the school after visiting with his aunt and uncle over the summer to help Emelie readjust. Lila now has a new name, Cerise Blanc, a woman sent by The Order. Emelie decides to give Cerise the butterfly and peacock miraculous in exchange for her having The Order keep an eye on Adrien. Cerise unifies the Peacock and Butterfly miraculous to become The Empress.
Return of the Butterfly: Rose is akumatized into Sweetpea once again after receiving devastating news about her condition. The Miracle Team return to take it down.
The Emperor’s Daughter: Adrien’s mother surprises him with his fiancé, Kagami, who he hasn’t seen in years. Her social class proves difficult for her to make friends.
Paper Flowers: Because of his shy nature, Felix makes an origami flower with a romantic poem written inside of it for Kagami. However, Kagami believes it was Adrien and becomes determined to make their relationship work.
Felix becomes depressed over Adrien and Kagami’s relationship while going out with them for the upcoming winter formal. Emelie grows jealous of how close Nathalie is with Adrien and sends her on a business trip abroad.
Boys’ Night: Emelie’s hovering nature makes Nino worried for Adrien. He starts to encourage Adrien to rebel a bit, but Nino didn’t expect Adrien to become so out of control when he’s off a leash. Meanwhile, the girls on the Miracle Team are having a sleepover to buy exclusive Jagged Stone tickets.
The Star: Adrien is akumatized into The Star after Emelie tells him she will unenroll him from school and return to homeschooling because of his recent behavior. She also fires Nathalie.
Tales of Scarabella and Kitty Noire: Adrien is under house arrest and Marinette’s sickness is coming back, so Scarabella and Kitty Noire have to keep Paris safe!
Hanabira: Kagami witnesses Adrien and Marinette together while waiting for their date at the Louvre, and is Akumatized and takes over the museum.
The Masked Lady and Me: When Cerise catches Felix looking for the peacock miraculous, Cerise later introduces herself as Madame Morphosis and makes a deal with him to avoid unification sickness. Felix’s backstory is revealed.
Our Frozen Hearts: Felix and Marinette find an unexpected common ground when they are forced to watch Adrien and Kagami dance together as Winter King and Queen.
Sentimaggedon: Madame Morphosis tests Felix to see whether or not she should let him keep the peacock miraculous she gave to him. In a desperate attempt to prove himself, Felix as Argos creates multiple sentimonsters that accidentally bring about the apocalypse. It’s up to the Miracle Team, with Dragonbug, to save the city.
Cat and Mouse: Marinette uses the Mouse miraculous once again to be undercover while dealing with akuma-related disappearances. But Chat Noir won’t take any chances and hunts her down to bring her miraculous to Ladybug.
The End of Us: Kagami breaks off the engagement with Adrien. Adrien then asks out Marinette, who delightfully says yes.
Motherbird: Emelie willingly becomes Akumatized by Madame Morphosis in order to keep her son Adrien under her watchful eye.
Sing a Little Song: Clara Nightingale, an American popstar and a close friend to Zoe, comes to Paris to shoot a music video. But her overbearing manager and strict schedule causes her to become akumatized into Frightingale.
Birds of Prey: While hanging out with Marinette, Kagami is kidnapped by Argos. Marinette and Chat Noir have to defeat Argos’s sentimonsters in order to rescue her.
Frenemies: Adrien is trying to get Chloe to warm up more to the idea of Marinette and him being together. Marinette helps Felix overcome his fears and talk to Kagami.
Bonded by Our Sins: After getting closer to Kagami, Felix tries to back away from Madame Morphosis’s control. However, she scares him into submission by threatening to hurt Kagami.
Who is Lila Rossi?: Argos is sent by Madame Morphosis to take Marinette’s miracle box after being informed by Trixx. But him and Marinette devise a plan to trick her.
True Love: Felix confesses his feelings to Kagami at the fashion show and shares his secret with her. Volpina hunts Marinette’s classmates one by one for the scattered miraculous, using extreme measures to get what she wants.
Let’s Do This, Together: The miracle team, along with Argos, has to defend Paris against Lila, who has unified most of the miraculous and become a magical hybrid monster.
Always and Forever: Ladybug and Chat Noir decide to take one last stand against Lila.
Happily Ever After: Marion, a 12 year old girl, discovers small magical creatures who live in her favorite music box!
Quick explanation for episodes 22-24:
Lila collects and unifies most of the miraculous, becoming a monster-animal hybrid and losing herself and all sense of rational. Marinette exposes her identity to all of Paris because of her, and Marinette is aware in a few hours everyone she’s ever known will forget her. Chat Noir reveals himself as Adrien to her before she takes his and the Ladybug miraculous, and unifies them to become Gimmi Marinette and destroy her for good!
Marinette feels Senti-Queen’s mixed emotions of betrayal and hate and loneliness, and her kindness shines through. She uses the Lucky Charm to rebirth Ah Lam as a child, giving her the opportunity to live a normal and love-filled life, the one she never had.
The time span is towards the end of Senior Year, when they were suppose to graduate.
AFTERMATH
So Marinette no longer exists, no one remembers her, and there’s a child version of Lila now.
Now what??
Child Lila is adopted by Marinette’s parents, who have always wanted to have a child. They rename her Marion. It means “wished for child” :,) But also “sea of sorrows”, symbolizing Lila’s life and the pain she caused!
After reading Marinette’s diary, the city knows she was Ladybug. They create a new park called “Ladybug Park” in memory of Marinette.
The Order of the Guardians come to reclaim the jewels unified by Lila, but the kwami refuse to be captured again and flee with their jewels. They all go back to the miracle box for safety. Marion finds the miracle box in Marinette’s old room, and unknowingly becomes the next Guardian.
Adrien only remembers Ladybug, and believes she was the one to unify the miraculous. He has no real recollection of Marinette, but subconsciously feels the loss.
Congrats for making it to the end heheh!
Have some cake! 🍰
Eat it under this rainbow for a break! You deserve it!
🌈
“BUT CHOCO!!”
“You still haven’t explained why there are only three seasons!”
Oh yeah! Sorry!
It’s because I feel like it took 5 seasons in canon to explain what happened in 3. I imagine my AU to be a Disney-owned show that was about to cancelled.
How can I sum up the plot of Miraculous Ladybug in 3 seasons, 12-15 episodes each?
So time to ask about my side-character favs. Clearly Chloé is still richie-brat, but we have Queen Bee. So What flavor of her do we have? Also, how is my best doggo Sabrina doing?
ALR SO-
Chloe does start off as a Richie-brat, but overtime she becomes more sympathetic. There are multiple examples in the AU where she shows she has a heart;
She saves Sabrina during an akuma attack in her hotel
She’s consistently there for Adrien and does things in his best interests
She recognizes Marinette’s kindness
She semi-comforts Marinette ONCE after a Luka misunderstanding
She compliments and tries to calm an akumatized Sabrina
Backs Marinette in her accusations and suspicions against Lila
Acknowledged Marinette’s talents in fashion design
She actively tries to change her behavior towards others after being given the bee miraculous
And more!!
Once Marinette and Adrien start dating, they become official “frenemies”! Marinette doesn’t ever really get over Chloe’s ego, and Chloe still thinks that Adrien can do better but is willing to respect his wishes if it means he’ll be happy.
Queen Bee isn’t permanent in my AU, but she’s very dramatic and showy, like she’ll do flips in the air like an aerial dancer for the news cameras, strike poses and does lots of things for attention. She loves the spotlight so Ladybug is a bit salty when she is getting all the attention.
It’s not like she’s a bad partner, but her ego does get in the way of actually taking down the akuma, and she doesn’t take orders very well, especially if it doesn’t end in her being the one to save the day.
AND FOR SABRINA:
Sabrina does have a mean girl streak, like Chloe. She’ll aid her in her bullying and use her phone to cyberbully. She is the top ballerina at a prestigious dance school as well. So even though she’s much quieter than Chloe, the girls in her class know her to be perfect but condescending. She is also compliant/encouraged Chloe in her bullying and bad behavior (doing her bidding, offering ways on how to bully, etc.) and definitely entices gossip and drama for her own amusement, or for Chloe’s benefit. But she also has a heart too;
she cares about Chloe deeply, is always there for her when no one else is, and
is able to interpret Chloe’s emotions to other people when Chloe can’t do it accurately herself
Didn’t run away from an akumatized Chloe and instead insisted on helping her
Skipped school to stay with Chloe after a traumatizing birthday party
Recognizes when things REALLY goes too far and feel guilty about it, maybe even apologizing in her own stuck-up way.
Sabrina is aware that she doesn’t have a good relationship with her mom (Only Adrien knows the terrible details), but she’s Chloe’s best friend for a reason.
In chocoau! I really like the idea that Chat Noir is Ladybug’s protector.
He’s there to make sure she’s safe and can protect Paris, or is just the one she can rely on and fall on when she makes a mistake. It would give Adrien a sense of purpose and the chance to prove to himself (and unconsciously Marinette) that he can be a kind person. So even though Chat Noir doesn’t have a crush on Ladybug, he’s always willing to listen to her and do as she asks just because that’s his role as the Cat miraculous holder. Maybe that’s also why he calls her “my lady”, because he sees himself as her knight!!
She trusts him to be there for her, and he trusts her to take down the akuma.
(This would also reflect in Plagg and Tikki. When Tikki gets kidnapped or is in trouble and Plagg sees, he never hesitates to help her even though it might expose himself or the other kwamis.)
The Curse is kind of a defense mechanism put on the miraculous by old Guardians to protect them and the users identity.
In the AU, if a miraculous holder exposes their identity to someone, then that person will forget their secret identity altogether. It’s a curse set in place to protect the miraculous and the holder. So, if Marinette told Alya she was Ladybug OR Alya caught her transforming/de-transforming, Alya would forget Marinette ever existed in a few hours.
There are small loopholes around this rule, like if the person figures it out themselves but never confront the holder or have their suspicions confirmed in any way, then they’ll retain their memories. (Like in Alya’s case.) It’s a dangerous slippery slope tho, since you’re risking the fact that a loved one will never remember you again, so it’s best to just. Not be caught ehehfwehf.
But this curse DOES NOT apply to the dead. If someone dies (Gabriel) and AFTERWARDS you find out their secret identity, then you won’t forget that dead person. (Adrien’s case with realizing Gabriel was Hawkmoth only after he had died and his mother woke up again.)
Ladybug doesn’t forget the miraculous holders identities (such as Alya and Chloe and others she hands them out to) because once you are the Guardian of the Miraculous, through an ancient ritual, you are immune to the curse. But when Master Fu made Marinette/Ladybug the Guardian, he forgot who Ladybug and Chat Noir’s secret identity was.