My Fierce Son-in-Law

A soul whose transmigration failed merges with a fifteen-year-old boy.

An accident during the fusion causes him to offend a narrow-minded classmate.

His classmate sets him up, leading the school administrators to expel him.

By chance, the boy awakens a System and develops at a breakneck pace, then turns around and marries the administrator's daughter.

The administrator has no choice but to say, "My son-in-law is a force to be reckoned with."

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.