Transmigrated Into a Book: A Good-for-Nothing? No, I'm the Villainous Male Lead!

Childhood sweethearts promised to go to college together, only for her to become a rich heir’s chauffeur?

He worshipped his campus-belle girlfriend for three years, only to be used as a stepping stone and kicked aside?

He worked hard as a full-time boyfriend, only for his girlfriend to treat him like a sucker who’d raise another man’s child?

A scheming woman pursued him, took credit for his work, and then tried to get him fired?

He married a rich woman and became little more than a house servant, only to end up raising someone else’s child!

He transmigrated back to the time when he was about to start college with his childhood sweetheart, and awakened the Villainous Male Lead System!