Hey everyone! Can somebody recommended the story that is all about their struggles life and traumatic and one day they met someone and their life change because of them... or both of them had struggles life and when they meet eachother... They together help each other to grow and much stronger now... Just similar plot of lost in the clouds and never understand

Hey anyone, can someone recommend about the ml role can be a villain, heroine, anti villain, anti villain... And also there is a transmigration happening and a romance with harem both women and men love the ml so much but there is a twist of that the atmosphere feels like a horror/comedy... And the genre is any as long as the description is there.
Regressor Instruction Manual