Kisa Misaki, a 15-year-old human girl, sports chin-length aubergine hair accented by a yellow bunny-shaped ornament on her left side and vivid violet eyes. Her school uniform pairs a white sailor top with a pink skirt, white tights, and brown loafers. When invoking her Alice User abilities, her attire shifts to a flowing rose-and-black-red gown adorned with feathers, purple gemstones, and a beret matching the ensemble.

Her personality radiates spirited independence blended with a warm, helpful demeanor, punctuated by the unique verbal tic "-Desuno." Though fiercely loyal and optimistic, she bristles when her younger brother Palm pilfers her sweets. She holds deep admiration for Duke Artorius, inspired by his heroic deeds and compassionate nature.

Initially pursuing Alice User powers for personal strength, Kisa’s motivations evolve toward unwavering support for Kiraha Kirihara, a friend she secretly loves. She discreetly collects Kiraha’s discarded belongings and crafts symbolic gestures—like sharing snacks to mimic kisses—though Kiraha perceives these acts as mere friendship.

In battle, Kisa channels water magic through transformative rings, crafting blades that unleash slashing energy waves, explosive aquatic surges, and spiraling water pillars. Her agility and tactical intellect shine in clashes against foes like Jabberwocky, often coordinating with allies to shield civilians.

Her journey traces a shift from solitary ambition to teamwork. After a sparing mercy from Arisu and Kiraha during combat, she allies with them, aiding collective battles against antagonists. While her interactions with Aruto Kirihara primarily ease tensions between Kiraha and others, spin-off narratives briefly explore her mentoring roles—yet her steadfast loyalty and eccentric charm remain central.