The Big Brother That I Like The Most - Vol. 0 - Oneshot

[MangaDex]

 

[llArull]

This would be such a good horror BL, the child that is groomed and brainwashed but doesn't know they were groomed and brainwashed OR the child does know but they don't do anything about it because they don't know any better, they are convinced they're in "love" (they're not).