1girl, aki_(mmtghdak), bikini, bikini_under_clothes, black_hair, blue_bikini, blue_hair, blue_shirt, breasts, colored_inner_hair, cutoffs, daitaku_helios_(umamusume), facial_mark, feet_out_of_frame, hair_between_eyes, hair_ornament, hairclip, multicolored_hair, shirt, short_shorts, shorts, sitting, solo, stomach, streaked_hair, swimsuit, thighs, tied_shirt, umamusume, white_shorts, yellow_eyes