1girl, armpits, arms_behind_head, blue_archive, collarbone, demon_girl, demon_horns, flying_sweatdrops, forehead, hair_ornament, hairclip, hina_(blue_archive), hina_(swimsuit)_(blue_archive), horns, looking_at_viewer, myeolchi, name_tag, official_alternate_costume, one_side_up, parted_lips, presenting_armpit, purple_eyes, school_swimsuit, simple_background, sleeveless, solo, swimsuit, whistle, whistle_around_neck, white_background, white_hair