Read Manhwa Do You Believe Humans Are Born Evil? / Nature Versus Nurture / What Is Your Thought About Innately Evil of Human Nature Theory? / 성악설을 믿나요?
Cha Seonho lives a humble yet diligent life, but something has been bothering him for months: someone keeps leaving a sticky mess in his locker.
As the cruel pranks escalate, Seonho and his best friend, Lee Yugeon, decide to catch the culprit by staking out the locker overnight.
But when Seonho takes a break to visit the restroom, he discovers something deeply unsettling has happened to his own body…
