The Second Master's Iron-Blooded Heroic Shadow

Classic martial arts fiction.

Tian Er is mistaken for a murderer and, from that moment on, becomes embroiled in a web of grudges and rivalries in the martial world. After a painstaking investigation, suspicion finally falls on someone close to him. In the end, it is proved that an acquaintance framed Tian Er.

The killer also explains why they framed him: a petty grievance spiraled into a terrible disaster.