Black-hearted and awkward villain vs. Infatuated and perverted decent
An old enemy came to the door and said that he was homeless and asked for adoption.
Villain: I can't afford it
Decent: It doesn't matter, I'll help you raise it
Villain:…?
(Why does my old enemy always touch my waist)
In summary, this is a story in which the righteous helps the villain to support himself.
Concept: The best friend turned into an old enemy and finally became a husband