In My Rebirth, I Want to Be a Scumbag

When I woke up, I turned out to be my most annoying scumbag ex-boyfriend! But wasn't the best friend who was sleeping next to me the one who stole my boyfriend? Let's see how I teach her a lesson! Wait, why is my best friend's sister looking at me so hungrily? No! This damn scumbag's peach-faced face! Originally, I just wanted to teach my best friend a lesson, but I suddenly found that I actually fell in love with being a scumbag??? No, this is an illusion! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.