1girl, ass, ball, black_shirt, blush, hair_between_eyes, idolmaster, idolmaster_cinderella_girls, long_hair, looking_at_viewer, lying, on_stomach, open_mouth, orange_eyes, riku_(melty_drop), shirt, short_shorts, short_sleeves, shorts, soccer_ball, solo, white_shorts, wristband, yellow_eyes, yuuki_haru