Yoisho commands a crew of sailor mice with a gentle heart, his steadfastness and level-headed nature distinguishing him as a pillar of resolve among his peers. A jagged scar replaces his right eye, sustained in a clash against the antagonist Noroi—a permanent testament to his enduring defiance against the warlord’s oppressive regime. Tasked with safeguarding the island of Yumemishima, he rallies his fellow mice against relentless incursions by the Noroi Clan, blending tactical foresight with quiet resolve.

Though bound by paternal ties to a daughter named Yuri, the depth of their kinship and her role in the resistance remains uncharted. When the protagonist seeks allies to counter the rising threat, Yoisho lends his weathered wisdom to their coalition, mentoring fledgling rebels while coordinating counteroffensives. Decades of skirmishes have forged his unflappable presence in combat, anchoring allies amid chaos through measured decisions and scars earned in past campaigns.

His history with Noroi extends beyond their violent encounter, informing his intimate understanding of the enemy’s tactics and the sacrifices required for victory. Though seasoned by hardship, he champions the protagonist’s cause without hesitation, viewing their shared struggle as a legacy worth defending for future generations. The captain’s weathered features bear the visible toll of conflict, most prominently the sealed void where his eye once gazed—a silent emblem of resistance worn without shame.