A genius medicinal chemist, Lee Han-seok, developed a drug that can give anyone who takes it an addictive pleasure they can never forget once their body comes into contact with his semen.

“Hey, it was over thirty years ago. We were just fooling around for fun, right? Huh? We're friends, aren't we? It's all water under the bridge now, right?”

By chance, I ran into the group of bastards who had tormented me so badly in high school that I wanted to die, even going as far as bullying me relentlessly.

“She’s my daughter. Pretty, isn't she? Say hello. He’s one of Dad’s friends.”

After that day, I began meeting the daughters of those pieces of trash. Every single one of them had stunning looks and the body of a woman—so beautiful that it was hard to believe they came from those men's DNA.

This isn't revenge or anything. I'm only doing this because I want to have some fun too. So... that makes it okay, right?