Misa Kuroki operates as one of three Battery Girls energizing the Garanndoll, designated as the Brains through her hacking expertise under the alias "WerdNya". Trapped in self-imposed isolation after her father’s unexplained disappearance, she survives through clandestine cyber activities and reliance on delivery networks. Her anxiety-ridden psyche surfaces in timid interactions, nervous stammers, and a compulsion to conceal herself within cardboard boxes when overwhelmed, frequently punctuating distress with involuntary "Meow" utterances.

She bears dark green hair, petrol-shaded eyes, and ever-present cat-eared headphones reflecting her insulated worldview. A solitary band-aid clings to her uninjured left knee, echoing her idiosyncrasies. Her connection to the Cat 3 unit translates into the Garanndoll’s golden combat hue and feline-armored silhouette.

Growth sparks when a collaborative gaming loss against the protagonist kindles mutual respect, slowly drawing her from reclusive habits into hesitant teamwork, though introversion shadows her progress. Her Battery Girl power channels gaming fervor kindled during childhood sessions with her vanished father—these memories now directly fueling the Garanndoll’s core systems.

Arahabaki’s forced recruitment preyed on her agoraphobia, rooted in paternal abandonment fears. Initially resistant, she gradually anchors as the group’s indispensable strategist, navigating the tension between technical brilliance and fragile, emerging bonds.