1girl, arm_up, armpits, bikini, blue_eyes, blush, bow, breasts, brown_hair, english_text, feet, grey_hair, happy_birthday, highres, innertube, love_live!, love_live!_sunshine!!, navel, ocean, one_eye_closed, ribbon, salute, short_hair, side-tie_bikini_bottom, simple_background, smile, solo, stomach, swim_ring, swimsuit, syoma_(1026syoma), thighs, tube, watanabe_you, water, wavy_hair