1girl, ass, bare_shoulders, barefoot, blue_hair, blue_one-piece_swimsuit, blush, bob_cut, feet, from_behind, full-face_blush, grid, hair_ornament, hairclip, hand_on_floor, light_blue_hair, looking_at_viewer, looking_back, one-piece_swimsuit, open_mouth, original, red_eyes, school_swimsuit, seiza, shibacha, sitting, smile, solo, swimsuit, toes