1girl, armpits, arms_up, blue_sports_bra, blush, borgbutler, breasts, dark_red_hair, from_below, gradient_background, grey_background, hand_in_own_hair, long_hair, looking_at_viewer, love_live!, love_live!_sunshine!!, medium_breasts, red_hair, sakurauchi_riko, simple_background, smile, solo, sports_bra, underboob, yellow_eyes