Nobody wants a psycho for a boyfriend-especially not Choi Chanhee. His random outbursts, hissy fits and insanely high IQ make him the most isolated student in school. Lee Juyeon, on the other hand, has it differently. After losing a bet to his basketball teammates, the "happy-go-lucky" and "no-girlfriend-since-birth" jock is forced to flirt with Chanhee, and have him his boyfriend under thirty days as a price. But a prank never runs without a catch. What happens when Chanhee grows an unhealthy obsession over Juyeon? With his twisted mind, he'll have him wrapped around his fingers, manipulating every move just to keep the jock for himself. This hell hole is one psychological warfare.