Ask Aislin! {Oc asks}

Little oc blog! (F!Aislin above)

[ask-aislin]

Hi!

This is just a little blog for people to ask my Undertale oc Aislin (and their main three aus, Skip, F! Aislin, and K! Aislin) questions. No NSFW questions, they are still mentally (and physically) a child. Please use they/them when referring to any Aislin, and I go by she/they.

Classic is normal Aislin, Skip is an au where they end up in the multiverse after a neutral route where only Toriel and Asgore are killed out of the main characters, F! Aislin and K! Aislin are the two branches of their Undertale Yellow (classic could be found in Snowdin) au. F! Aislin stands for Feisty Five Aislin, while K! Aislin stands for Ketsukane Aislin. Basically just depends on who took them in.

NOTE: Depictions of characters other than Aislin and Rowan (aka canon characters) may not be accurate.

Lore:

Aislin is the second born child of Asgore and Toriel, coming after "the plan" and only knowing Toriel. They had a pretty good, although sheltered, life for a while, although they did almost eat Flowey once...

And then Rowan (human before Patience but after Chara, another oc) fell. Like with a certain previous pair of kids, Aislin found Rowan after they fell and brought them home. The two would explore the Ruins, and eventually got bored. That's when Rowan recommended that the two of them go out "that big door." The two waited for Toriel to go out, leaving a note before escaping out the door and finding themselves in Snowdin. It was pretty happy for a while, but then Aislin suggested the two go get snacks. They tried (and failed) to convince Rowan to come along, who promised that it would be okay for them to go on their own. When Aislin came back, Rowan was being attacked by a figure with a helmet. They tried to help, managing to run the figure off, but it was too late.

F! Aislin lore:

After spending who knows how long on their own in Snowdin (See Lore above), Aislin woke up surrounded by sand instead of snow. Wandering to find out where they were, they eventually found some food... A trap. They didn't know until it was too late, but at least they had food. Another time skip, and the Feisty Five find this goat kid stuck in a trap (likely set for humans) with the plate or similar cleared off and decide to take this lost kid in.

K! Aislin lore:

After spending who knows how long alone in Snowdin (see Lore above), Aislin wakes up in a strange building (the Steamworks). While exploring, Chujin finds them and decides to take them in. They did well in the Ketsukane family for the most part (other than a bit of insecurity about being different leading them to cut down their horns and wear a mask), but often got into arguments with Chujin over humans. Upon hearing what happened to the blue soul, they blew up at him, not believing that the human had attacked Kanako's friend. When Chujin got ill they locked themself in their room, feeling guilty. After learning that he died, they ran away and hid in the Steamworks. If they could just disable that protocol thing on that robot, if they could just turn it off, maybe they could finally save someone...

Please try to specify which you're asking, or say something like creator if asking me. Constructive criticism welcome! This blog is a safe place for anyone LGBTQ+, but like I said before, keep things SFW for the most part.

Ask away! ^-w-^

[ask-aislin]

Log 30 - Case A

I've attempted the standard tests on the monster brought to me. I first thought that one of them had managed to escape, but the test results were unlike those of the amalgams. The test results were also unlike any known monster. The "monster" brought to me seemed able to change forms, had irregular magic readings, and ate one of the lab chairs. Oddly, they seemed to be able to absorb some semblance of nutrients as if they had eaten normal monster food. I'm in doubt of if they even are a monster, but I don't know what else they could be. Don't even get me started on whatever is wrong with their SOUL.

I am unable to leave them alone for long. Despite their readings suggesting them to be quite old, they seem to have the mindset of a young child. This is not helped by their resilient nature. If I leave them on their own, they could possibly get into anything. I have attempted to set up complex locks, but they just see it as another game. I have considered finding someone who could watch them, but I'm still unsure how dangerous they are. Even if they're safe, they shouldn't leave the Lab; they don't seem to fully understand consequences or boundaries. But if I have someone watch them inside the Lab, all of my mistakes could be revealed. They seem to have an odd relationship with the concept of death, I should probably look for a therapist once I'm sure they aren't hostile.

They tell me stories of a human who helped them run away but got hurt, of a mother who cared a lot, of a yellow talking flower...

No no nononononononono

Guess who's back? I figured I'd post this, why not. A while back, I had the idea of "what if a Royal Guard noticed the oddness of Classic and brought them to Alphys?" I started on it a bit, but like most of my projects, I forgot and found a new idea to chase. The concept will need revision anyways, I came up with the idea back when I was still using AI. I have since quit and avoid AI whenever I can, but I have to clean my projects from during that sad time from the slop.

[uty-ask-clover]

All three Aislins (classic, F!Aislin, and K!Aislin, Skip is busy) say hi!

Classic: Oh, hi! I think I saw you around town...

F! Aislin: Oh, hey! Sorry 'bout not being around as much, been keepin' an eye out and all.

K!Aislin: ...hi...

(Definitely not just me making a little plug in the hopes that more people find my Ask Aislin blog-)

Oh Howdy!

[ask-aislin]

Aislin designs!

F!Aislin new design

F!Aislin old design

Classic Aislin (+Rowan!)

Skip (redesign suggestions welcome!)

K!Aislin

[ask-aislin]

Quick refresher on designs!

[ask-aislin]

Didn't even notice this! Well, Aislin(s)'s been online for a year and a month now.

[ask-aislin]

Underhallow New Characters (OOC)

Decided to call Target's AU Underhallow. Anyways, here are two new characters for the AU.

Unnamed fallen human, takes the place of Frisk. Alt kid, about 11-12. Possibly Hispanic? Briefly passed as monster due to their face paint.

New Snowdin monster, since the skeleton brothers moved out. Considering calling them Jackie? Haven't really fleshed them out yet.

Feel free to suggest ideas!

[ask-aislin]

Hey Aislin, how clean is your room?

Classic: If you mean in our worlds, Skip and I don't really have rooms anymore. I sleep in the snow, and Skip sleeps wherever they end up. As for now, it probably wouldn't be seen as clean.

F! Aislin: I didn't really have my own room with the Feisty Five, but yeah, just put stuff where it felt right.

K! Aislin: I tried to keep my old room clean, not make too much trouble for my new mom and dad... It's probably really dusty from me not being around for so long...

(I have a new ask blog! @ask-keiko-san )

[ask-aislin]

Deltarune Aislin

Pinterest board for them: https://pin.it/7FlHacKi2

I've been remaking Deltarune Aislin since their original concept was super inaccurate. Now they're an older high school student who's somewhere between punk, scene, and goblincore. They tend to go out and explore abandoned buildings or hunt for ghosts and cryptids. This became more noticeable during the divorce process.

Now, I've fallen into the Bergentrück rabbit hole, and considered something. Maybe I could try to incorporate it into this au? My main concept is a series of reoccurring dreams Aislin had.

Should I incorporate it?

Yes, but more relevant (comment ideas)

Yes, dream time

Nah, probably not

Voting ended onAug 12, 2025

[ask-aislin]

Aislin, what's your favorite thing to eat that isn't food?

Classic: Hmmm... I dunno, I've had a lot. Least favorite is probably Flowey, he screamed when I tried to eat him. I wasn't able to eat any of the other flowers around, mom stopped me when I tried. She was crying when we got home, I dunno why.

For my favorite... Chairs are pretty good, nice and crunchy. Not the fluffy ones though, those don't feel good. Forks and stuff are good too, mom would get upset though.

(Unrelated note: I'm currently working on a possible Deltarune Aislin au)

[ask-aislin]

Does Aislin ever encounter Asgore?

For Skip, they stopped following Frisk in either Waterfall or Hotland (the two areas where you can backtrack and encounter Aislin following in neutral or pacifist; if you killed a few monsters after meeting Aislin, this triggers their fight, where one instance of sparing them results in the Skip au), and Asgore was gone before they had the chance.

For F!Aislin, likely not, maybe after Clover's sacrifice?

For K!Aislin, they might have gone up to a meeting with Chujin once, wearing their mask of course. It would be weird to show the king the monster you adopted that looks oddly like him. Like F!Aislin, they might have visited after Clover.

Now, classic Aislin is where things get interesting. They die in Snowdin during the no mercy route, so that's ruled out. In neutral without backtracking or only killing Ruins monsters, they'd probably get distracted by the familiar interior design of Asgore's home, or maybe interact with Sans in the Last Corridor.

True Pacifist is where things get tricky. While they'd likely end up coming with Sans and the rest to see Frisk, I also had a concept where they wandered off and went to visit Napstablook. This was partly for a little comedic scene like

*distant Asriel battle noises*

Aislin: "Do you hear something?"

Napstablook: "No..?"

Aislin: "Huh, guess I just heard something not real again or something..."

But really, this little scene doesn't really have much impact on anything. They probably just kinda hang out in a corner or something at the most, so they'd only really interact with Asgore after everything. Toriel is going to have to explain things, not that she'd exactly want to tell her ex husband he has another child.

[ask-aislin]

I remembered this ask while I was in the shower, and I just imagined Aislin awkwardly t-posing in the corner while Asriel and Frisk fight, the two oblivious to the spectator.

[ask-aislin]

Does Aislin ever encounter Asgore?

For Skip, they stopped following Frisk in either Waterfall or Hotland (the two areas where you can backtrack and encounter Aislin following in neutral or pacifist; if you killed a few monsters after meeting Aislin, this triggers their fight, where one instance of sparing them results in the Skip au), and Asgore was gone before they had the chance.

For F!Aislin, likely not, maybe after Clover's sacrifice?

For K!Aislin, they might have gone up to a meeting with Chujin once, wearing their mask of course. It would be weird to show the king the monster you adopted that looks oddly like him. Like F!Aislin, they might have visited after Clover.

Now, classic Aislin is where things get interesting. They die in Snowdin during the no mercy route, so that's ruled out. In neutral without backtracking or only killing Ruins monsters, they'd probably get distracted by the familiar interior design of Asgore's home, or maybe interact with Sans in the Last Corridor.

True Pacifist is where things get tricky. While they'd likely end up coming with Sans and the rest to see Frisk, I also had a concept where they wandered off and went to visit Napstablook. This was partly for a little comedic scene like

*distant Asriel battle noises*

Aislin: "Do you hear something?"

Napstablook: "No..?"

Aislin: "Huh, guess I just heard something not real again or something..."

But really, this little scene doesn't really have much impact on anything. They probably just kinda hang out in a corner or something at the most, so they'd only really interact with Asgore after everything. Toriel is going to have to explain things, not that she'd exactly want to tell her ex husband he has another child.

[ask-aislin]

What's the most comedic scene you've thought up with Aislin?

So, you know how their horns are more curved? Well, I've come up with a few scenes where they get stuck somewhere by their horns. An example I actually drew (don't have it with me) is Aislin somehow stuck in a tree because their horns got hooked, with a poorly drawn chibi Starlo questioning everything below. Another example of an "Aislin makes UTY characters suffer" drawing is the little goat melting in one of those spinny office chairs, just minding their business, with an even more poorly drawn Chujin crying in a corner over some kid with a disregard for basic physics.

But also, just them being able to eat almost anything and not realizing that most don't eat chairs when they're hungry.

[hxneyfarm]

Happy pride month specifically to folks on the asexual and aromantic spectrum who oftentimes feel isolated and left out of the conversation. You belong here as much as the rest of us and I hope that you are all loved in a way that is comforting to you.

[ask-aislin]

Aisdysseus

So, I've been working on post True Pacifist Aislin, and there's one thing set in stone for them: they are a total theater kid. And then they discover Epic the Musical.

You know Jorge? Imagine if he was a chaotic, borderline eldritch second grade goat monster with little impulse control. They particularly take the role of Odysseus when acting it out, which led to the nickname Aisdysseus. This is used for scenarios like when they managed to lead an army of second graders and a few random goats (like the actual animal, which somehow got in) through the halls.

[ask-aislin]

Are SS!Aislin and SS!Rowan known as the shenanigan duo of Snowdin like the skelebros?

Yep! SS! Aislin is actually pretty notorious for their random box pranks. Is it full of glitter? Snow? Some kind of annoying alarm? Their sibling's attempt at pie? The human? You don't know until you open it. SS! Rowan is usually more behaved, if nothing else but that they want to impress their adopted mom SS! Toriel. Their plan is to train with her and eventually be the first human member of the Royal Guard. SS! Aislin and SS! Toriel both can't tell them that the only reason that they were spared was because their soul had some abnormalities that weakened it.

The two built scout stations around the Underground when they were younger to keep a lookout, SS! Aislin still using them to keep an eye on SS! Rowan. Someone's gotta keep an eye out, and SS! Toriel is too busy with the guard while SS! Asgore is occupied with his "fishy cyborg celebrity."

[ask-aislin]

Fun Facts: Overwrite!Storyshift Edition!

Overwrite!Storyshift is a variation of Storyshift that adjusts to include Aislin and Rowan in the swaps. It also includes some other changes like minor character swaps and story details. The areas, however, are fairly the same other than changes that are character-specific. (Note: SS! marks the characters in this au, while unmarked names are from the original except Frisk)

SS! Aislin and SS! Rowan take the roles of original Sans and Papyrus, SS! Chara now taking the role of Rowan and SS! Asriel taking the role of Aislin.

SS! Sans never intentionally declared war against humans, unlike Asgore. After losing his adopted kids, he tries to deflect with a joke, but it gets taken seriously and now it's too late to take it back.

SS! Aislin still has the same energy level as Sans, but not just from being lazy or depressed. They suffer from Magic Fatigue Syndrome, or MFS, a condition that affects monsters and human magicians. They're currently in the early stages of this condition, which bring drowsiness, decreased coordination, and occasional tremors. Later stages can lead to reduced magic control, exhaustion, confusion, hallucinations, and eventually paralysis.

SS! Aislin is still shorter than Frisk.

The food vendors get bumped up one place: SS! Nice Cream Guy takes the role of Grillby, SS! Grillby takes the role of Burgerpants, SS! Burgerpants takes the place of Muffet, and SS! Muffet takes the role of Nice Cream Guy.

SS! Toriel and SS! Asgore aren't together anymore but technically haven't divorced yet. They each live in Waterfall and Hotland respectively, leaving SS! Aislin and SS! Rowan together in Snowdin.

[ask-aislin]

When you're working on your silly little alternate of an existing Undertale au where the only difference from the au was originally just adding two of your ocs, but now you're starting to get a bit deeper and write more into it:

[ask-aislin]

Probably not what I was supposed to take from the last ask, but what fandoms are they in, if any?

Well, this really depends on what human content they'd be able to get while of. For example, I'm thinking that F!Aislin found a copy or two of Danganronpa and got invested. Their favorite group in the first game was probably Chihiro, Mondo, and Ishimaru, although they also liked Sakura.

If you mean post True Pacifist Aislin, first off they're a theater kid who's probably big into Ride the Cyclone. I also see them getting into gen 4 MLP, although Toriel made sure that they didn't go too far into the dark side of that community. And then probably some niche, tiny fandoms or short-lived ones like the previously mentioned Horse Race Tests.