Kasigi Yabu—Yoshi Toranaga

Yabu’s bond with Toranaga is a calculated vassalage brought to a decisive test: given a choice between trusting his lord’s strategy and betraying it to Ishido, Yabu chooses to serve Toranaga, while concluding that service may require removing Ishido. Their relationship is neither simple obedience nor settled trust. Toranaga delegates consequential decisions to Yabu; Yabu uses that discretion to pursue plans of his own, then must decide whether his interests still lie with his lord.

Vassalage and delegated authority

Earlier in the evening, Yabu asked permission to go to Osaka ahead of Toranaga and prepare for his arrival. He presented the trip as a matter of rank and ceremony: someone of standing should ensure that the arrangements were proper, especially since, as Yabu put it, Ishido did not understand ceremony. The proposed delay could take weeks. The reasoning gave Yabu a practical opening to act while appearing to safeguard Toranaga’s interests.

Yabu also proposed moving the foreign ship to Yokohama in case of a typhoon, where the Musket Regiment could guard it, and then continuing to Osaka by galley. Toranaga approved the plan but added an instruction Yabu had not anticipated: Naga was to accompany him and remain in charge at Yokohama. Yabu accepted the change. His private assessment was that Naga’s presence had not been part of his arrangements, but would be useful there. The exchange shows Toranaga granting latitude without surrendering oversight, and Yabu adapting his own design to the order.

Protection of Anjin and the limits of trust

Yabu strengthened his case for taking Anjin with him by reporting Tsukku-san’s anger. He warned Toranaga that the priest might turn Christian converts against Anjin, making it urgent to secure men at Nagasaki if Toranaga later wanted the ship put to sea. Yabu proposed placing Anjin under his protection and bringing him along to Osaka, then continuing to Nagasaki to obtain new foreign sailors before returning. The proposal joined a claim of protection to a sequence of practical preparations; it also placed Anjin and the ship within Yabu’s reach.

Toranaga left the decision to him, calling Yabu his friend and telling him to do what he thought fit. That trust is consequential, but the scene does not make Yabu’s motives disinterested. Yabu is pleased that at last he can act, and he recognizes the value of the authority he has been given. Their closeness is therefore political as well as personal: Toranaga depends on Yabu to carry out arrangements, while Yabu treats that responsibility as an opportunity to shape events.

The nineteen-day crisis

Later, Yabu learns that Toranaga can delay for only nineteen days before he too must appear. The limit abruptly changes the scale of Yabu’s decision. In his calculations, nineteen days allow him to reach Nagasaki and return to Osaka, but not to launch a seaborne attack on the Black Ship. Without that attack, he sees no time to pressure Harima, Kiyama, Onoshi, or the Christian priests; without that pressure, he sees no time to set Crimson Sky in motion. He concludes that Toranaga’s larger scheme may have failed.

The crisis makes Yabu’s vassalage an explicit choice rather than an assumed bond. He weighs two courses: continue to trust Toranaga and help Anjin obtain the men needed for the attack more quickly, or go to Ishido with what he knows and bargain for his own life and Izu. His fear is concrete: he believes that Toranaga’s deadline may leave him exposed, and that loyalty could cost him the chance to save himself. The relationship is tested not by a direct order but by the uncertainty of whether Toranaga can still escape the political net.

A choice expressed as action

Yabu sets aside his anguish long enough to prepare a formal acceptance, taking care to write it beautifully rather than answer with a disordered mind. Once he has made the critical decision, he follows Yuriko’s advice completely and feels the burden lift. The decision is not proof that his doubts have vanished; it is a resolution about which side to serve despite them. His formulation of how to be Toranaga’s best vassal is stark: Ishido must be removed.

The formal invitation that follows—to a reception Ishido is giving for Ochiba’s birthday—places Yabu close to the man he has decided to eliminate, even as he asks how he can do so and still leave himself time to escape. The relationship thus ends this sequence in a state of dangerous commitment, not a completed reconciliation or a demonstrated act of success. Yabu has chosen Toranaga over a bargain with Ishido, but he continues to calculate the risks of carrying out that choice. His service is real in its consequence and conditional in its method: he commits himself to Toranaga’s cause by turning his political calculation against Toranaga’s enemy.