Masterless samurai Masanosuke Akitsu' life is changed after a chance encounter with Yaichi, who offers the timid swordsman a bodyguard job and invites him into the mysterious world of the Five Leaves.

Masanosuke begins to grow more comfortable within the world of the Five Leaves, but despite his efforts to learn more about Yaichi, the gang leader remains a riddle.

Thanks to Yaichi, Masanosuke's found a job as a bodyguard at a rice wholesaler. The work is steady and the samurai hopes to keep the position for a long time - but the situation might be too good to be true.

Masanosuke gets hired as a bodyguard at the brothel where Yaichi lives. If he can keep from getting fired, he'll be able to send his family some money - and maybe learn more about the elusive leader of the Five Leaves.

Masanosuke recuperates from an illness at the Elder's house, where he is encouraged to leave the world of the Five Leaves behind. The samurai also learns the reasons behind Umezo's involvement with the gang.

Masanosuke's still healing at the Elder's house, and while Umezo occasionally visits to check up on him, Yaichi remains reluctant to make an appearance. Meanwhile, Denshichi investigates the source of Senkichi's funds.

Masanosuke's back in Edo after recovering from his recent illness, but the samurai finds he still has problems when a tough adversary from the past challenges him to a new face-off.

When Matsukichi hears that Kiku-ya's owner is having problems, his decision to try and help out results in even bigger troubles. Masanosuke and Umezo's growing concerns lead them to investigate.

Masanosuke sets out to rescue Matsukichi and settle the matter of the stolen wooden tags. Meanwhile, Sachi, Masanosuke's little sister, is on a mission of her own after running away from home.

Yaichi's strange behavior is becoming a concern for people at Katsura-ya. Meanwhile, Masanosuke learns more about Yagi's past following a graveside visit.

Masanosuke begins to understand what motivates Yaichi to keep kidnapping, even when the rest of the gang sees no need. Hoping to learn more of Yaichi's past, Masanosuke visits Elder.

Yaichi joins Yagi for a drink, where they reminisce about the past and old friends. Later, tensions escalate after a confrontation between Jin and Yaichi leads to a confession about the kidnapping.