akuma (st.takuma), kasumi (blue archive), blue archive, absurdres, highres, 1girl, :d, ahoge, bare legs, black hair, blush, coat partially removed, demon girl, demon horns, demon tail, fang, gehenna academy logo, grey background, hair intakes, halo, horns, lab coat, lightning bolt symbol, long hair, long tail, looking at viewer, open mouth, orange eyes, red halo, red shirt, shirt, simple background, sitting, skin fang, sleeves past fingers, sleeves past wrists, smile, solo, tail, very long sleeves, walkie-talkie, wing collar