Is it obsession, resentment, or perhaps love? A murder case occurs where a man is brutally stabbed on a pedestrian bridge. The police focus on Sendo Hatsuaki, a former fencing champion, known for his god-like strength in the gang conflicts, using a stabbing weapon. To investigate Sendo, the police arrive at his home in advance, but―― Meanwhile, Tetsu Zenpachi, a yakuza from the Yanagioka gang who has just been released from prison, encounters Sendo while accompanying Chiyo. The two share a deep connection that dates back to the gang conflicts――.