Noboru

Noboru, Toranaga’s eldest living son, is a capable soldier and administrator whose illness has displaced him in the succession. Though he is among the few entrusted with the secret code that can set Plan Five in motion, the narrative chiefly defines him through the contrast between his abilities and the disease that has disfigured him, and through Toranaga’s grief at the burdens he bears.

Identity and Place in the Succession

Noboru is Toranaga’s eldest living son. His younger brother Sudara is identified as the heir, but Toranaga privately judges that, were it not for Noboru’s illness, Noboru would have inherited instead: he considers him a brilliant soldier, a better administrator than Sudara, and notably cunning. Noboru’s displacement is therefore not presented as a judgment on his competence. His physical condition has interrupted a succession that, in his father’s assessment, his talents would otherwise have secured.

Illness and Toranaga’s Concern

Noboru contracted the Chinese pox at seventeen, ten years before the events recalled in this passage. Treatments tried by Japanese, Chinese, Korean, and Christian doctors have not checked the disease. It has already left his face disfigured, though it is not expected to kill him. When Ishido uses the possibility of the pox as a threat against Toranaga, the mention unsettles him: he knows the disease’s ravages through what has happened to his son.

Toranaga responds to the threat by thinking beyond his immediate political contest. If he becomes powerful enough, he hopes he might stamp out the disease; he wonders whether it truly comes from women and how it might be cured. His thoughts turn from the medical questions to Noboru himself, whom he pities for carrying so many burdens in this life. The passage thus reveals care that public calculations of power and succession do not usually display.

The Secret Plan and Narrative Role

Noboru is one of only four people who know Toranaga’s private code, alongside Sudara, Kiri, and Toranaga himself. The coded message instructs its recipient to disregard all other messages and activate Plan Five. That plan calls for the Yoshi Clan’s leaders and their most trusted counselors to gather at Yedo and mobilize for war; its signal is Crimson Sky. The plan also anticipates that Toranaga’s assassination or capture would make the assault inevitable, with Sudara leading the attack on Kyoto.

Noboru’s inclusion among the code’s few trusted recipients places him within Toranaga’s innermost political circle even though he is not the designated heir. The evidence does not show him personally activating the plan or taking part in its proposed campaign. Instead, his importance lies in the conjunction of concealed responsibility and frustrated potential: he possesses knowledge central to the family’s war preparations, while illness has kept him from the position his father believes his abilities merited.