Is there any good bl manga or manhwa with regret plot? Or something like bully trauma psyc...

This one is relatively slow-paced but once you're past the peak of it, it gets a bit heart-wrenching, especially after the recent late-story revelations: https://www.mangago.zone/read-manga/beyond_memories/

Thank you!! Going to read it rn

My Starry Sky

I've read it before but thank you!