Toda Buntaro and John Blackthorne's relationship

Toda Buntaro and John Blackthorne are bound less by friendship than by a contest over Mariko’s honor: Buntaro sees Blackthorne as the living source of an unforgivable shame, while Toranaga insists that Blackthorne helped protect the honor Buntaro believes he has lost. Their relationship turns on that conflict between suspicion and duty, and ends in a formal apology made possible by Mariko’s sacrifice and Toranaga’s guarded disclosure.

An Offense That Persists

Buntaro says that Blackthorne insulted him at Anjiro and that he remains shamed. Later, with Mariko dead and Blackthorne’s ship gone, Buntaro still regards him as a threat. He alleges that Mariko betrayed him with Blackthorne and asks Toranaga to have Blackthorne killed, presenting the request as a lifetime favor. His claim rests not on a witnessed encounter but on what he says everyone knows and on an inference drawn from Yoshinaka’s remarks. Buntaro’s certainty turns suspicion into a demand for punishment.

Toranaga Refuses the Demand

Toranaga does not accept Buntaro’s account as proof. He asks what evidence Buntaro has, then rejects the premise that Blackthorne dishonored him. Blackthorne, Toranaga says, must remain alive: during the danger at Osaka, he prevented Mariko from being captured and shamed, thereby protecting her and Toranaga from dishonor. Toranaga broadens the significance of that intervention, crediting Blackthorne with helping save his ladies, his youngest son, and the hostages, as well as preventing Toranaga himself from falling into an enemy’s hands.

Buntaro argues that Blackthorne has served his purpose now that his ship is lost. Toranaga’s answer separates Blackthorne’s worth from his usefulness as a sailor: the life Buntaro wants ended is the life that helped preserve the honor and safety of Buntaro’s own wife. The request for a lifetime favor therefore exposes the gulf between Buntaro’s jealous interpretation and Toranaga’s judgment of what happened.

Mariko’s Hidden Choice

Toranaga explains that Mariko had asked him to revoke an order concerning her marriage, and that she threatened to commit seppuku rather than let Buntaro be shamed by the order. She understood her duty, Toranaga says, and acted to protect Buntaro’s honor even after her death. Her wish that the matter remain private was part of the agreement: no one else, including Blackthorne and her son, was to know. Buntaro’s understanding of his marriage is thus altered by information Mariko herself had chosen to conceal. The person he accused of betraying him had, in Toranaga’s account, acted for his sake.

A Formal Acknowledgment

Later, Blackthorne recalls facing Buntaro with a sword in his own hand and Buntaro holding his great bow. Kiritsubo and Lady Sazuko had told Buntaro how Blackthorne protected Mariko’s honor and theirs. Speaking through Tsukku, Buntaro formally thanked Blackthorne, apologized for his former temper, and bowed before leaving. The encounter does not establish intimacy between the men; it marks a change from accusation to acknowledgment. Blackthorne wishes Mariko could have been present to hear it, while recognizing that the private truth behind her actions must remain protected.