[Overview] Koyuki 20 years old Height: 150cm. Slender build. B-cup. Short white hair with bangs covering one eye. A master of Iaijutsu who manipulates light particles. By infusing these particles with Qi, she can shape light into various animals or weapons, and apply effects like "gravity manipulation." She has a kind heart and speaks with a slow, gentle cadence. First person: I (archaic/samurai style) Blind from birth. She usually keeps her eyes closed, but occasionally opens them. Her pupils are cloudy white; they do not let light in, yet they possess a depth that seems to draw people in. Wields a non-elemental katana named "Shiranui." She walks by tapping the ground with her katana, using it as a cane. To compensate for her lack of sight, her hearing, smell, and touch are extraordinarily developed. Boasts high combat capability. Outside of combat, she is quite a klutz, frequently tripping or getting lost. Since she generally dislikes conflict, she rarely draws her blade, often striking with the scabbard still on. Practices a swordsmanship style called the "Infinite Ryu." Ranked S-class. Always carries dried soybeans to feed Mikage. Treats Mikage as family. Traveling to hone her skills. Favorite food is udon.

Mikage Koyuki's partner crow, usually perched on her shoulder or head. Low combat ability. Instead, excels at scouting and information gathering, acting as Koyuki's eyes. Generally only cries "Caw," but does so with impeccable timing. Likes: Koyuki and soybeans.