uno usaya, plana (blue archive), blue archive, commentary request, 1girl, after anal, anus, ball, black eyes, black hairband, black serafuku, black shirt, black shoes, blue background, blush, bow, censored, clothes lift, from behind, gaping, hairband, halo, multicolored hair, no panties, open mouth, red halo, red pupils, school uniform, serafuku, shadow, shirt, shoes, solo, speech bubble, squatting, steam, trembling, two-tone hair, white bow, white hair