Young swordsman Chu Bufan visits Tongzhou to see a friend but accidentally witnesses a shocking death, pulling him into a web of mysterious cases. As he investigates, his journey for truth tests his courage and chivalry in the martial world.

少年侠客楚不凡以侠义之名扬名江湖。初到通州，原本只为探望好友王济安，却在铁匠铺目睹石加口吐蜈蚣惨死。而后陷入各类迷案中探索真相。