(Fanart posted for HoYoLAB's Luna IV incentive program. Apparently users can "vote" on each work, so I'll link my two Dottore submissions later :((( sorry for Dottore spamming lately but it makes me so happy more ppl are finally paying attention to him now due to AQ)
This is not a summary of the main story routes, but a collection of lore information from them - it is marked for spoilers.
Each route is its own version of the same broad background story, so some of it interconnects, while some of it is dependent on a romanced MC and thus does not.
The broader background lore can therefore be considered as canon, while other lore can be considered optional imo!
Also, some routes contain far more Devildom lore than others - Lucifer's is particularly packed, others have way less!! (°ー°〃)
Note - Lucifer, Asmo and Beel all begin their routes in different jobs than they finish. Other routes may refer to either job for those characters. This lore summary doesn't include the card stories.
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The Deep Lore
First up, the tl;dr important lore:
Lucifer is no longer sworn to obey Diavolo.
Lucifer's magic can be breached by Barbatos, but not by Diavolo.
Diavolo is about to be made king.
Satan is now First Consul, a status equal to Diavolo prior to his coronation.
House of Lords not entirely pro-Diavolo or pro-peace.
Former demon king has gone missing.
Mammon remains Lucifer's second.
Levi is who Lucifer keeps the closest eye on for fear of potential wars.
Levi is not as sensitive to magic as Satan and MC.
Diavolo's horns are controversial.
Barbatos "hated" his former job.
Mephisto now runs RAD.
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🦚 Lucifer
• Lucifer Lore: bought the House of Lamentation for them all. Assumed to be Diavolo's successor now Barbatos is gone. Approached by Diavolo to be First Consul - intends to decline position. Bigs up Satan to Diavolo for his work as coordinator. Loves dancing after midnight at the clurb. Places a magical barrier around HoL that his brothers and MC cannot break. When confronted by Diavolo, casts a silence curse upon him that will last until the wedding ends. Says it is his job to ensure Diavolo becomes king. Nominates Satan for First Consul. Confirms only Barbatos could have broken his barrier. Satan's work made him the clear choice, he and Diavolo have begun slowly trusting each other, and a "generational shift" is necessary for the Devildom. Was content to serve others if it protected his brothers, until he met MC. From now on he obeys nobody (oath presumably ended), and wishes to be with MC of his own free will. Is annoyed by Diavolo calling and wants MC to refuse the call.
• Mammon Lore: furious at Lucifer accepting proposal. Breaks into wedding ceremony with Levi and the others behind them, cheers MC on to object. Enjoys Lucifer's parting threat to the Clauderics.
• Levi Lore: is BIG MAD at Lucifer when he returns from research trip to hear of the wedding. Yells for the cheater to face him, told him he would sink him deeper than Cocytus if he upset MC, shoves Lucifer. When Lucifer accepts proposal, gets BIGGER MAD and starts to summon Lotan. Breaks into wedding ceremony with Mammon and the others behind them. Cries over MC leaving HoL and promises to sink Lucifer to the bottom of the sea if he hurts them.
• Satan Lore: does not wish to hear of his dad's sex life. At House of Lords by Diavolo's request, working as a coordinator for the House and RAD. Uses his contacts to find info on what Clauderics are planning. Interrupts Lucifer being a wedding martyr and calls him on his arrogance and for hurting MC. Openly states the Clauderics have bribed people for votes for the coronation - and that nobles who commit such acts of fraud lose their seat under the House of Lords laws. Agrees with Diavolo that his investigative skills are better than Lucifer's.
• Asmo Lore: is starring in a (romance/tragedy) movie out at the cinema. Is refused a ride by both Mammon and Satan. Furious at Lucifer accepting proposal.
• Beel Lore: his work for the day was bringing Vaermere to RAD. Furious at Lucifer accepting proposal.
• Belphie Lore: felt Lucifer's stars were misaligned lately. A magazine reported he was "booked solid for the next 500 years." Forsees water calamity signs, lucky item umbrella - ie Levi's anger.
• Diavolo Lore: Upcoming coronation, growing power struggle in House of Lords. To become Demon King requires the House of Lords full approval. In exchange for approval he was pressured to offer up Lucifer. Tells Lucifer he does not accept his plan. Lucifer casts a silence curse upon him that Diavolo cannot break(!). When Satan announces the Clauderic crimes, Diavolo thanks him, revealing the curse is broken. Belphie gave him a flower called a khaleesa prior, it slowly absorbs curses. Tells the Clauderic family to swear fealty and this incident will be overlooked. Refers to Lucifer's choice of freedom as a "selfish demand". Says there have been organisational changes, and that since MC has contributed greatly to running RAD, asks would they keep helping with RAD's administration - under the new head, Mephisto.
• Barbatos Lore: features in a newspaper story with Solomon. In the human world. In his absence, House of Lords is running wild. Appears in the House of Lamentation after Lucifer locks everyone inside, reveals Diavolo summoned him, that Solomon's presence is incidental. It is only due to Barbatos lending a hand that the barrier is broken.
• Solomon Lore: features in a newspaper story with Barbatos. In the human world. Originally a nomad. Arrives with Barbatos.
• Luke Lore: returned to Celestial Realm with "others". His warning to MC about Lucifer in season one is replayed - "Never bare your heart to a demon. Especially not to Lucifer."
• Mephisto Lore: appears in demon form to tell Diavolo the horse for the coronation carriage, Vaermere, has arrived. Set to become new head of RAD.
• MC Lore: can tell Lucifer to "stay!" four times. Described as more wilful than Diavolo by Lucifer. Can tell Lucifer he's a big idiot. Refuses Diavolo's job offer but it remains open.
• Magic Lore: Lucifer is capable of magic that Diavolo cannot overcome, but Barbatos can.
• Other Lore: it's been half a year since finishing at RAD. Ristorante Six has a VIP table with a 200-year reservation wait time, Lucifer has a booking ofc.
• First Consul: the Devildom's number two. Highest authority in politics and administration, overseeing laws, ceremonies, diplomacy, and order. Diavolo's former role as acting king. Once Diavolo ascends the throne he has the right to appoint an official First Consul.
• Magical Creatures: Vaermere (see Satan's Route) - vær is an old word with various meanings from ram to weather to tranquil, while mere is seen more commonly in place names as it refers to a body of water (hence where Shadowmere arises from). "Calm waters" is perhaps a fitting name for a trusted horse. It also just sounds like mare.
• Magical Flora: Khaleesa - perhaps referring to the Arabic word khālisa which means pure and exclusive.
• Background Characters: Clauderic family - nobles around since time of Demon Kings past, ruthless. Plan to use Lucifer as a pawn via political marriage. Opposes policy of harmony with human world. Anti-RAD and anti-Diavolo behind closed doors. They believe by winning over the First Consul they can influence the entire Devildom. Lucifer must accept proposal or Diavolo will not become king, and old Demon King's disappearance will be blamed on Diavolo, the brothers, and MC.
Demon King - Diavolo's father and former ruler, has been missing for over half a year, known only to a select few. Clauderic family are aware and using the info as blackmail for Lucifer to accept proposal.
• Historical Notes: Clauderic has no precise match but is reminiscent of the influential Claudius patrician house of ancient Rome, spanning five emperors with the Julio-Claudian dynasty (from Caesar's adopted heir Augustus to... Nero), noted for their "pride and arrogance, and intense hatred of the commonalty". This latter point is interesting, to so despise the common people, as an old theory on Diavolo's heritage is that his mother was perhaps a human or at least non-noble. The fact that there is currently an "uproar" regarding his horns (see Satan's route) could be broadly related - if not just royal gossip, an implication that his horns give away his (lesser) bloodline. The only other noble demon we see is Mephisto, and his horns are very different...
• Mythology Notes: Cocytus, which the other hall of residence is also named for, is the river of wailing and lamentation that branches from the Styx to flow into the Acheron, the river of woe, in the underworld. It appears in Dante's Inferno as the frozen lake of the ninth circle where Satan is imprisoned, the circle of treachery - precisely what Levi accuses Lucifer of.
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💳 Mammon
• Mammon Lore: workplace possibly called Devil's Fight 666. Death Phoenix is the "deadly, immortal" undefeated winner. Emceeing began as a light gig but he is raking in the cash. Is a Demonus addict fan. Calls MC "dumb dumb" if they nearly set him on fire, but also says MC is the only one who can call him dumb. Ready to protect MC immediately. Recognises Beel as fake because the real Beel knows Mammon is far stronger. Overcomes pride and insecurity. RAD is the place most dear to him according to his memories, and MC and his family what matters most to him - not money. Breaks out of fake world by using his own memories of MC.
• Lucifer Lore: has private word with Mammon. Knows Mammon is about to propose, and keeps interruptions at bay.
• Levi Lore: wants to buy all 666 blind acrylic stands from Ruri-chan's bridal event. Knows about 2D husbandos.
• Satan Lore: is First Consul.
• Asmo Lore: is Press Secretary. Has rings he designed on sale.
• Diavolo Lore: upcoming coronation. Seems a little depressed. Recently invited to a wedding.
• Barbatos Lore: travelling with Solomon, hasn't been heard from in a month or two.
• Luke Lore: is in Celestial Realm.
• MC Lore: can tell Mammon to "stay!" twice in a row, threaten to not let him touch them for a week. Summons Mammon fully as soon as danger strikes. Uses magic in teamwork with Mammon. Hits Mammon (no choice given). Commands Mammon to sit/stay again.
• Magic Lore: spiked Demonus from an enemy of Mammon puts him and MC in a fake RAD built out of his own memories (and insecurities). None of the fake brother shenanigans are lore. The fake reality literally has doors you have to pay cash to open - I guess Mammon's nightmare is micro-transactions too!
• Other Lore: RAD Times used to be seen as a "dumb tabloid".
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🐍 Levi
• Levi Lore: celebrating publication of debut novel, Demons Live, full title Even If God Abandons Demons, I Still Want To Live With My Oshi. Won the Devildom's Fantasy Literary Excellence Award. Is overjoyed Lucifer read it. MC took a lot of his firsts... Talks to Henry when alone. Has an interview in a magazine. Accepts wrongdoing before confrontation.
• Lucifer Lore: recognises something is wrong. Has retired and enjoys playing golf. Spotted books missing in the HoL library regarding love. Is concerned an unstable Levi could result in war against the human world. In demon form manages to calm an irate Cerberus, and teleports him back underground. Satan keeps him up to date afterwards.
• Mammon Lore: Levi claims his work is in a legal grey area. Describes his work as a boxing gym, Levi says it isn't just that. Reported odd happenings to Lucifer. Yells to Lucifer to watch out for Cerberus. Knows MC is glum before he sees them.
• Satan Lore: is First Consul. Dismisses Asmo and Belphie's concerns about Levi. Is amused that Cerberus wanted to attack Lucifer. Tempts Levi by saying he saw a Rena figurine from Dora Mayo in Mammon's room.
• Asmo Lore: wants to star as witch Mirelle in any live-action adaptation of Levi's book. Likes Bloody Kiss Tint No 5, a maledictum lip balm. Is currently filming.
• Beel Lore: is working at Hell's Kitchen. Goes to look after Cerberus and keep an eye on him.
• Belphie Lore: a previous fortune telling technique he tried required sacrifices. Can be woken with Last Breath Wake. His foretold lucky object of the day is a notebook - the clue to the happenings in HoL.
• MC Lore: burns the notebook.
• Magic Lore: a notebook that writes thoughts without a pen, and makes those events come true - Levi knowingly manipulates all demon brothers including Lucifer (to an extent), and summons Cerberus.
• Magical Creatures: Lotan mentioned; Cerberus magicked into library in a rage but calmed by Lucifer.
• Book Titles: Lovers Who Dreamed Too Much, Song For Those Who Wait, Silver Script: Love Chron...
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🦄 Satan
• Satan Lore: established as First Consul on Lucifer's recommendation (see Lucifer's route). Every word he speaks is entwined with his love for MC.
• Lucifer Lore: although retired, he attends private dinner with Diavolo and the lords. Calls out Satan for not calling him to help in the first place. Points out that Satan now only answers to Diavolo and that he, Lucifer, is Satan's to command along with everyone else. Restores Satan's lost words to MCs memories as a gift.
• Mammon Lore: protective of MC. Information gatherer. Is trusted as Lucifer's second.
• Levi Lore: not as sensitive to magic as Satan or MC.
• Asmo Lore: established as Press Secretary, formerly Icon of the Devildom.
• Beel Lore: in charge of coronation carriage and Vaermere.
• Belphie Lore: established as bestselling fortune teller in the Devildom.
• Diavolo Lore: many lords in House of Lords are anti-Diavolo. Unrelated uproar over the shape of Diavolo's horns. Diavolo knows or suspects of Valk's feelings which is why he requests his attendance, to hear of the version of his father that Valk loved. Empathises with Valk who refers to him as a petty demon. But for hurting Satan, Diavolo gets angry, and Lucifer has everyone move back. Diavolo wins, entire area of the castle is destroyed in the process.
• Barbatos Lore: "Barbatos used to express his discontent though. You could tell he really hated doing all that stuff." - Belphie.
• Simeon Lore: Satan thinks Simeon would be a fan of Valk's writings.
• Mephisto Lore: is possessed by the ghost of Lord Valk. Levi confirms he survives Diavolo's smackdown.
• MC Lore: loses ability to hear Satan due to Valk's spell. Can command Satan to "stay!"
• Magic Lore: a sacrificial spell to seize someone's heart is possible. It steals much of MCs magic, and the result is almost too powerful for Diavolo and Lucifer combined to overcome. Lucifer swears with the effort, "damn!"
• Merfolk Lore: have own ancient language, (noble) demons can rarely have merfolk lineage.
• Language Masters: Lucifer and Satan.
• Vaermere Lore: "Vaermere reacts to strong emotions. Especially feelings of love or loyalty. Its coat shines when it senses them." - Beel. (see Lucifer's Route)
• First Consul: standing in for His Highness at meetings, amending laws, and mediating the domain. Everything Barbatos did.
• Castle Locations: Blue Hall, Hall of Starlight.
• Former Traditions: coronation sacrifice ritual.
• Background Characters: Lord Grave, Lady Melteor, cellist Andalis Vaughn.
• Major Background Character: Lord Valk, the essayist with penname El-Valk Nemesis, former name Agares, Grand Duke of Hell. Author of Blessings and Death to Those Who Know Love! - his only book. First edition is banned, rumours it makes people fall in love or break up. Mix of poetry, prose, philosophic essays, epistles, and dramatic forms. Once known as the avatar of language and knowledge, and hailed as the Devildom's finest linguist. The subject of his book was his secret unrequited love for the Demon King.
Demonology Notes: Agares the demon is mentioned in many a grimoire and is amongst Solomon's 72 demons. Valk is Dutch for "hawk", the bird that this demon carries.
"The first duke under the power of the east, is named Agares, he cometh up mildly in the likenes of a faire old man, riding upon a crocodile, and carrieng a hawke on his fist; hee teacheth presentlie all manner of tongues, he fetcheth back all such as runaway, and maketh them run that stand still; he overthroweth all dignities, supernatural and temporal, he maketh earthquakes, and is of the order of virtues, having under his regiment thirty one legions." - Pseudomonarchia Dæmonum (1577)
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💖 Asmo
• Asmo Lore: has been working in human world. Has been on the front page of Devil's Style many times, is on TV every day, and in various fashion shows. He's given an interview for an upcoming action scene. His posters are on display by Hell's Burger and Uncle Demon. He has a photo collection for sale. Has human world exclusive Asmo collab merch - the mascot is a character from a "super popular human world brand" based on Asmo, "Esmo from Hesmes". Has created his own body cream. Has major fashion show and commercials to shoot after coronation. Scouted by Midhell - he turns it down. Livestreams himself singing and a concert announcement on date with MC. Accidentally livestreams his plans to retire immediately after. Is swiftly made Press Secretary, Satan assumes Diavolo scouted him.
• Lucifer Lore: calls MC with concern. Appears with all brothers to reveal they have hired the entirety of Devil's Coast for MC and Asmo's privacy.
• Mammon Lore: Tours Moryo town with Satan. Information gatherer. Expresses concern for MC's safety. Displeased Asmo leaves MC for fans.
• Levi Lore: Levi's book is for sale. Requests Magical Girl Rika merch and Closia-tan stickers. Warns MC their photos have gone viral.
• Satan Lore: Not First Consul yet. Touring Moryo town with Mammon ahead of new job. Expresses concern for MC's safety. Displeased Asmo leaves MC for fans.
• Beel Lore: buys both Levi's book and the magazine with Asmo's interview.
• Belphie Lore: Gives MC a good luck charm, this saves them from fans at Devil's Coast.
• Devildom Locations: Devil's Coast reappears with usual attractions, Moryo Town (previously known), Moryo River, Moryo Hill.
• Background Characters: Oberson the playwright.
• Other Notes: Esmo from Hesmes is perhaps a reference to Eros of Hades - not a character shown in game but one with a great deal of fanart that is very Asmo-coded. Eros is ofc the Greek god of love and sex.
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🍔 Beel
• Beel Lore: working part-time at Hell's Kitchen. MC summoning him creates holes through nearby walls. Can talk down giant hellhound. Sea monsters retreat on his request. Recognises lab is for the study and protection of rescued magical creatures. Reveals he can't speak animal languages, but he can feel what they feel. Dragon understands him after MC power boost. Sees the animals as a family in need of protection, and becomes the new researcher. Turns down Lucifer's funding.
• Mammon Lore: warns MC of rampaging hellhound and is protecting others from it. Turns up at set location to make money from magical creatures until they're revealed to be rescues. Finds the lab. Reveals dragon is too strong for him, Beel, and MC to handle.
• Lucifer Lore: has dog dad knowledge. Offers Beel funding for the research lab.
• Levi Lore: is a fan of small hellhound. Researches hellhound and finds species information.
• Satan Lore: is a fan of small hellhound. Investigates hellhound and uncovers smuggling operation, announces he is joining Beel and MC at set location as First Consul. During the dragon attack, states he is responsible for protecting the Devildom. Captures all smugglers.
• Asmo Lore: is a fan of small hellhound. Filming tv show. Notices Beel's love for magical creatures and requests he and MC come to set with him to the flower location. Invites Levi and Lucifer as future extras as both felt left out.
• Belphie Lore: gave Beel a flower that helped calm the hellhound. Is a fan of the small hellhound. Reveals flower is from "super far away" via Asmo.
• MC Lore: has unknown job to begin with. Can shrink creatures. Recognises lab equipment is from the human world. Will run research lab with Beel.
• Magical Creatures: hellhound type Valgrym (fur boosts magic, super rare), Salvator (giant water monster), dragon (giant, fire-breathing), palm-sized dragon.
• Devildom Locations: Magical Creatures Research Lab (a ship's journey from home location).
• Mythology Notes: Valgrym could be interpreted as meaning "cruel choice", while the church grim or kirkegrim is a guardian dog spirit of British and Scandinavian folklore that protects graveyards from harm and evil (a parallel perhaps with this hellhound seeking help for their home). Salvator is perhaps a monster version of the water monitor, the second largest lizard in the world, latin name Varanus salvator - it is seen as an omen of bad luck in some cultures.
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💤 Belphie
• Belphie Lore: is established fortune-teller. Picked a job he could do from home. Misunderstands a reading he does for MC. Tries to scare off a mugger with his power but he and MC have to run. Belphie has a minor injury from the mugger. Doesn't understand why someone angry at one of his readings would be angry at him. Traps MC and himself in a dream. (Attic incident not addressed.) Imprisons other self in attic. Fears causing harm and not making others happy. Belphie and MC talk Belphie around. Commits to studying fortune-telling. Gets Asmo to teach him how to speak in a way that accurately conveys his readings without causing trouble.
• Lucifer Lore: supports Belphie's proposal after the others protest at the suddeness.
• Mammon Lore: saves MC and Belphie by scaring the mugger off with his presence. Brings them home to get Belphie treatment.
• Levi Lore: is who MC goes to for help.
• Satan Lore: is First Consul in Lucifer's place (see Lucifer's route). Investigates muggers, who were hired by a noble upset by Belphie's reading.
• Asmo Lore: is Press Secretary. Worries about Belphie. Gives Belphie a special class in How To Talk to Impress!
• Beel Lore: working at Hell's Kitchen.
• Barbatos Lore: surprise appearance in Belphie's dream trap. MC can only reject his help.
• Solomon Lore: surprise appearance once dream is exited. Reveals Belphie's readings are popular where he is.
• Mephisto Lore: has taken over duties from RAD.
• MC Lore: is assisting Mephisto at work. If kept in Belphie's dream world, would never have awoken again. Can tell Belphie to "stay!".
Devildom Foods: fresh headless dragon, blue rose crystal syrup, magma mushroom soup.
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As always canon is canon, and headcanons are headcanons. You do not have to abide by any canon you dislike!
Personally I consider OM as having three seperate canons: original Obey Me; Nightbringer; Ido.
You can use canon from one, two, or three, and pick and choose as you please for your own headcanons.
Turns out Terzo’s little bro looks like if Cillian Murphy and Hamish Linklater had a baby who played Victor Frankenstein (brand new sentence). Literally mashing up all my favs here
Look at them side by side 🥹
(Don’t mind the messed up format/background, I lost my line layer so I had to rasterize what I had 🥲)
gummygunk
jbbartram-illu
theartofmadeline
2087
dededos
yousharknotpass
