1girl, 3, ahoge, blue_archive, collarbone, demon_girl, demon_horns, demon_wings, forehead, hair_ornament, hairclip, halo, hina_(blue_archive), hina_(swimsuit)_(blue_archive), hk_nnm, horns, long_hair, looking_at_viewer, name_tag, official_alternate_costume, old_school_swimsuit, one_side_up, parted_bangs, purple_eyes, school_swimsuit, sidelocks, simple_background, sitting, sleeveless, solo, sweatdrop, swimsuit, whistle, whistle_around_neck, white_background, white_hair, wings