1girl, ahoge, ass, blue_archive, demon_girl, demon_horns, demon_wings, from_behind, hair_ornament, hairclip, head_tilt, hina_(blue_archive), hina_(swimsuit)_(blue_archive), horns, in_water, innertube, leaning_forward, long_hair, looking_at_viewer, looking_back, mikayu_1, official_alternate_costume, old_school_swimsuit, one_side_up, parted_bangs, parted_lips, pointy_ears, purple_eyes, school_swimsuit, sidelocks, sleeveless, solo, swimsuit, white_hair, wings