1girl, arena_(company), armpits, arms_behind_head, arms_up, artist_name, barefoot, blue_one-piece_swimsuit, brown_eyes, brown_hair, competition_school_swimsuit, covered_navel, door, flat_chest, full_body, indoors, logo, long_hair, one-piece_swimsuit, one_eye_closed, open_mouth, original, ribs, rohitsuka, school_swimsuit, smile, solo, swimsuit, teeth