I'll be honest here I really can't pick One Headcanon that I value more than my other favorite ones , so I don't know how satisfying my answer can be here , but I'd say there at least Is a type of headcanon I feel most found of being depression headcanons.. I don't talk about it much because people may dislike them but one of the characters I headcanon depression on is Jaehee from Mystic Messenger. I haven't played the game in a while though , so I don't exactly remember how I came to this (she's also autistic , her special interest being coffee , she always talks about how it's made and she's the reason I actually wanted to like it)