Book Wear: Good-For-Nothing? No, I Am the Evil Male Protagonist!

Childhood sweethearts agreed to go to college, but ended up becoming a free rider for the rich second generation? I knelt and licked my school beauty girlfriend for three years, only to be kicked away as a stepping stone? A hard-working, full-time boyfriend, but his girlfriend treats him as a pick-up guy? Being pursued by a scheming girl to actually dominate the performance, and ultimately being kicked out of the company? Marrying a rich woman is like a domestic servant, and she ends up helping others raise their children! Travel back to the time when you started going to college with your childhood sweetheart, and awaken the vicious male protagonist system!