Gokenin Zankuro Matsudaira's life is marked by poverty and lost love. He becomes involved in a mystery surrounding a missing son, leading to a tragic ending with stolen lives.
Zankuro and Harutaro succeed at a new school. Tatsukichi loves Harutaro, while Zankuro meets Shinzaemon. Harutaro's past and skills tie to Shinzaemon's hidden son, Genbei.
Zankuro escorts Omachi, Yakuza conflicts follow. Teaming up with Zoshu, tragedy strikes Omachi, forcing Zankuro to make a just but tough decision in a final battle.
Zankuro's bizarre dojo-breaking leads to a surprising investigation. His involvement with a martial arts conflict unfolds, revealing hidden relationships.
Mitsu's son is kidnapped by her former lover, Sennosuke. Zankuro takes on the case, uncovering past love and treachery. Tragedy and a surprising confession ensue.
