Sehun followed his father's step to be a part of a special crimes force. He's the youngest member of the team. But his skills can't be doubted. Many kinds of crimes he and his team had solved. Catching criminals is part of his life. 

But one day, Sehun must face a problem he'd never been before.

falling in love with his target.

"You think what you see is her real form? No! It was a mask, Sehun-ah! She's a monster!"

"I know.. but.. it's hard to resist."