Case. Solved. Mystery. Unlocked. Deduction. Truth. Three students who will help to find the real culprit in every crime scene. Students who will decode every codes and riddles. Students who will enter in the world of Mystery. A boy, whose cold yet mysterious. He's not your typical man and he doesn't feel like talking to anyone. A girl, whose silent yet deadly, with her deadly glare, you wouldn't dare not to bother her. Another girl, which has the bitchy personality, yet she has a scared heart. Can you imagine that they possessed rare ability? The boy who can deduct a case and treat people. The girl who can identify the smell and has a powerful senses. The girl who loves mystery books and good at speculating. Will they be comfortable with each other? Let us join the journey of the 'threetective' as they solve the cases in the world of mystery. "Truth always prevails."