Hengshui High School witnessed another student killing himself by jumping off. The young policeman named Song Tianqi was assigned to investigate the case. Much evidence showed that it was only a suicide but the appearance of a pair of glasses put Song Tianqi in doubt. With the help of two students Li Musha and He Mi'na, he decided to carry out a thorough investigation. **Original Manhua:** [AC.QQ](https://ac.qq.com/Comic/ComicInfo/id/623869), [BiliBili](https://manga.bilibili.com/detail/mc27580), [IQIYI](https://www.iqiyi.com/manhua/detail_18yzlxjzgl.html)