The one who returns with a dark revenge × the proud man who feels guilty and soon falls in love with him to death
This is probably the story of a dark young man who died innocently and tragically in three lifetimes. He came back to seek revenge but failed and was liked to death.
Or let's talk about a story about a favored man who wanted to be nice to him all the time due to guilt and other reasons, but couldn't help but like him so much that he became extremely possessive.
Purpose: revenge and love