1girl, ahoge, angry, arona's_sensei_doodle_(blue_archive), ass, bikini, black_bikini, blue_archive, bubble99, electric_fan, eyewear_on_head, frilled_bikini, frills, from_behind, hair_between_eyes, hot, looking_back, neru_(blue_archive), neru_(swimsuit)_(blue_archive), red_eyes, red_hair, sensei_(blue_archive), short_hair, sidelocks, simple_background, smile, solo, sunglasses, sweat, swimsuit, white_background