Toranaga's Brown Faction

Toranaga's Brown Faction is the armed following gathered around Toranaga, whose strength rests on both conventional samurai and organized firearms. Its military power is displayed in disciplined formations and readiness for movement, but its unity is not automatic: the secret “Plum Tree” plot exposes how officers within its ranks could turn their weapons against its commanders, making allegiance a continuing political test as well as a battlefield necessity.

Military Structure and New Weapons

The faction's forces are shown through a muster at Yokohama village. Toranaga approaches with the Musket Regiment assembled on a plateau, its horses and equipment ready for review and its muskets carried in holsters. Other armed samurai line his route toward the shore as an honor guard. The display conveys organized strength, but also a force expected to move quickly: Toranaga has ordered the regiment prepared for immediate departure. He objects, however, when he sees fishing boats drawn up along the wharf and villagers waiting in rows. He orders the villagers back to work, except for the headman, and notes that stopping fishermen or peasants from their work is irresponsible. Military readiness is therefore presented alongside the burdens it can impose on ordinary life.

The regiment's use of firearms belongs to a broader challenge to samurai convention. Muskets had reached Japan through Portuguese contact, and Japanese makers began producing them within eighteen months, but guns were long treated as a novelty, used chiefly for hunting, while bows were considered more accurate. Warfare remained associated with individual, close combat; the sword was regarded as more honorable, and gun use could be condemned as cowardly and contrary to Bushido. Against that inherited code, Lord Yabu had privately imagined a new force: five hundred selected samurai trained to fight together with muskets, supporting twelve thousand conventional troops, alongside twenty cannon served by specially trained men. His ambition was that guns could decide the coming war. The Brown forces' firearms thus signify not merely more weapons, but a proposed change in how samurai units fight.

A demonstration makes the change visible in formation rather than theory. Attackers assemble into five disciplined phalanxes, each four ranks deep and twenty-five men across, with three phalanxes forward and two held in reserve. On command, they halt and fire together; the front ranks kneel to reload as successive ranks fire over them. When the defending samurai charge, the phalanxes give way and run, then regroup in a V and resume their coordinated volleys. The display shows both the discipline required for such tactics and the vulnerability of a formation that breaks under pressure. The weapons are blank and the attack staged, but the demonstration persuades its observers that the formation could have overwhelming consequences in actual combat.

Command and the “Plum Tree” Plot

The faction's coherence is threatened from within by a plot connected to the Musket Regiment. An officer from the Third Izu Regiment, Kiwami Matano, discloses that Lord Yabu had personally confirmed a scheme codenamed “Plum Tree.” It was intended to be used if Yabu changed sides during battle. In that event, Toranaga was to be the first target, followed by Naga and then Lord Sudara. Fifty-four men knew the plan, and Matano says he has supplied their names in writing to Kasigi Omi. The plot places the regiment's organization in sharp contrast with its public display: drilled ranks and coordinated command can serve Toranaga, but the same military structure can be turned against him.

Omi brings the information to Toranaga at Mishima while the outcome of Mariko's challenge is still pending. He confirms that Matano is present and that the details are not mistaken. The officer then explains the scheme and its limits: it was framed as a contingency, but the intended targets were specified. His disclosure is presented as a response to the shame of possessing this knowledge while Toranaga remained his liege lord. The evidence therefore reveals a divided duty inside the Brown forces: Yabu's authority had been used to authorize a contingency against the leadership, while an officer's obligation to his liege prompts him to expose it.

Loyalty and Political Tests

Omi's report also marks the culmination of a deliberate test of his allegiance. Toranaga had originally bought Kiku's contract partly to keep her from Omi. Kiku was one of Omi's weaknesses and a prize Toranaga could give or withhold until Omi had declared and demonstrated his loyalty, including whether he would assist in Yabu's removal. Omi does assist, and the narrative credits him with proving himself repeatedly. His suggestion to investigate the servants and his contribution to ideas later associated with Yabu's plans show him as more than a subordinate who simply obeys: he is an active source of counsel and information within Toranaga's political and military circle.

The discovery of “Plum Tree” gives that earlier test a sharper meaning. Omi's loyalty is demonstrated not in a ceremonial pledge but by uncovering a threat that implicates an Izu officer network and reaches the faction's senior commanders. The plot also reveals the limits of any simple equation between military membership and political allegiance. Men can occupy the same ranks and serve under the same banner while preparing for a change of sides; the trust that holds the organization together must be confirmed through actions and disclosures.

Political and Narrative Significance

The Brown Faction's military presence connects its internal politics to the approaching contest for power. At Yokohama village, the ready regiment, armed escort, waiting galley, and orderly preparations make Toranaga's capacity for movement and force tangible. Yet his concern for the villagers' work distinguishes command from indiscriminate mobilization: the faction's readiness has practical consequences beyond its own ranks, and those consequences remain subject to his judgment.

The faction's most revealing contrast is between its disciplined public face and its vulnerable internal loyalties. Musket drill promises to replace isolated combat with coordinated action; “Plum Tree” shows that coordination alone cannot secure obedience. The same organization that can deliver ordered volleys depends on officers choosing whom to serve when a commander defects or a rival order becomes possible. Through the Brown forces, military modernization and political loyalty become inseparable: the faction's strength lies not only in its weapons and formations, but in whether its members will use them for Toranaga rather than against him.