A Toyotomi vassal whose lands were confiscated by Hideyoshi, making him susceptible to Tokugawa's manipulation. He secretly joins Mitsunari's army as a double agent, but at Sekigahara, he is coerced by Tokugawa's emissary into executing a pre-arranged betrayal. His sudden attack on Otani's flanks shatters the Western Army's lines. Later, he visits Mitsunari in prison and expresses deep remorse for his treachery.
A fractured professional relationship defined by covert betrayal.
Tokugawa exploits Kobayakawa's grievances to secure a strategic double agent.
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