在某所中学发生了教师被分尸杀人事件。就读于这所学校的少年·小林，与前来搜查事件的天才侦探·明智相遇。对于只搜查异常犯罪的明智感兴趣的小林，不顾朋友羽柴的担心，自愿成为其“助手”。在接连发生的奇怪事件当中，小林将无聊的日常完全抛到了脑后。

Vyom, the school principal's a nerdy teenager son is disliked by most of his classmates, has only four friends, and a crush, Tara. When Tara goes missing and found dead, Vyom decides to solve the mystery behind her death.