왜 하면 안 돼?

Havi is the girl who has it all. Money, looks, boys, you name it. She's got everything she could ever want... except for one thing. Her new boyfriend's virginity! Eager to have some fun with the guy she's hounded for a year, will Havi finally have her way with Yul? Or is getting this docile boy into bed more than she bargained for?! (Source: Tappytoon) Note: Includes one extra chapter.