Responses
Idk if you wanted BL but this one includes parental trauma on both.
https://www.mangago.me/read-manga/utsukushii_tamashii/
https://www.mangago.me/home/mangalist/3616336/
would recommend Yang IIwoo and I, LITC, Minority and Kiss me if you can
mangas or manhwas with toxic family dynamics?
or maybe siblings?