Ishikawa, a young woman with medium-length brown hair and stark black facial markings, dresses in black attire that reveals her chest, layered with a mantle and a crimson waistcloth. A close-range combatant, she wields bladed weapons with ruthless efficiency, favoring a large hand scythe alongside small knives and a short sword. As a mercenary, her fiery rapport with Haruto sparks frequent clashes, blending rivalry with reluctant camaraderie.

Initially hunting Saki, Ishikawa’s group clashes with Yasuke until Saki overwhelms them. Later, under Abraham’s orders, she tries reviving Yasuke with a feather after capturing him. Following Abraham’s demise, Saki telepathically recruits Ishikawa’s team with doubled pay, forging an alliance against the Dark Army. In the ensuing battle, Ishikawa openly vows to defend her comrades, acknowledging her bond with Haruto before an arrow fells her. Enraged, Haruto launches a vengeful assault, marking her final act as the catalyst for his retaliation.