Seing comments now I get it.l, It wasn't a dream but their past life memory. I think I've read a manhwa like this. About past life, the ML repeatedly spent his life abused by his arch enemy- like, until he came to conclusion to forgive him. Quite a traumatized story, make me not want to hate someone that deep
Sure,here its https://www.mangago.zone/read-manga/palace_of_bardo/
I hope they'll release mature version
you're not alone
I never thought about it that, but I would love it