Insane Asylum AU!

You volunteered at an insane asylum, luckily, instead of being assigned to other insane units, you were assigned to treat and spend time with a particular Sans by the name of Nostalgia, also known as Stars.

He was a kind one, he was very obedient but experienced sudden aggression moments and Schizophrenia, he excitedly tapped on the plexiglass door from inside the room

Human! Human! Look what I made!

They had a drawing in their hands of you both in a flowery field