t3 (t3only), shinosawa hiro, gakuen idolmaster, idolmaster, highres, 1girl, :d, armpit crease, ass, bare shoulders, blonde hair, breasts, bright pupils, cameltoe, collarbone, colored eyelashes, earrings, feet, fingernails, flat chest, flipped hair, full body, hair ornament, hairclip, holding legs, jewelry, kneepits, light blush, long hair, looking at viewer, lying, on back, one-piece swimsuit, open mouth, orange eyes, school swimsuit, signature, simple background, small breasts, smile, soles, solo, sweatdrop, swept bangs, swimsuit, thighhighs, thighs, wet, white background, white one-piece swimsuit, white thighhighs