The Ex-Girlfriend of the Male Protagonist Dressed as a Cool Novel: the Male Protagonist Is OOC

I Asked the Male Protagonist to Drop Out of School so That the Female Protagonist Could Go to College, but the Female Protagonist Worshiped Money and Betrayed the Male Protagonist.

Please Let the Heroine Dress up as the Hero's Ex-Girlfriend

Are There Any Stories About the Scumbag Before She Made the Mistake? Don't Make a Mistake Already!

I want to read a book similar to "Quick Dress: 108 Ways to Clean Up a Scumbag". The article before the scumbag made the mistake, or the article before she completely committed suicide is fine!