Responses
hope these are fine, they are manga tho!
https://www.mangago.zone/read-manga/bakeneko_katatte_sourou/
https://www.mangago.zone/read-manga/toumei_na_ai_no_utsuwa/
https://www.mangago.zone/read-manga/kimi_no_yoru_ni_fureru/
https://www.mangago.zone/read-manga/majo_to_neko/
sorry if it's not similar to what u were asking for but I'm pretty sure they all have happy endings!
Thank you so much!
I want a bl manhua where the bottom is in this toxic environment and the top saves him, maybe something like that or similar and If completed, need a happy ending