Suzaku Ban, a Koga ninja studying alongside Ittoki Sakuraba of the rival Iga clan, harbors seething hatred for the Iga, fueled by a misplaced belief they assassinated a revered Koga leader. This vendetta drives him to relentlessly stalk Ittoki, manipulating allies like Kirie and menacing those close to him. Yet beneath his ruthlessness lies an unwavering code of honor—he openly condemns peers like Himura for dishonorable acts, viewing such conduct as a stain on the Koga’s legacy.

Consumed by vengeance, Suzaku infiltrates secure training grounds disguised to ambush Ittoki, their clashes escalating in brutality. However, Ittoki’s defiance and condemnation of cyclical violence fracture Suzaku’s resolve, sparking uncharacteristic hesitation. When Ittoki’s mother, Yumika, dies, Suzaku appears at her funeral, his own childhood loss during clan wars surfacing in a rare moment of empathy. He silently endures Ittoki’s grief-fueled assault, a charged gesture marking his pivot from animosity to uneasy solidarity.

The revelation of Kido’s manipulation behind the Koga-Iga feud propels Suzaku to ally with Ittoki against their true enemy. This partnership crystallizes his evolution from vengeful adversary to conflicted collaborator, guided by redefined notions of justice. With crimson hair and piercing scarlet eyes mirroring his incendiary temperament, Suzaku’s undefined past outside clan allegiance is eclipsed by his trajectory from bitter hatred toward tentative reconciliation, his actions etching a path from vengeance to fractured redemption.