yurikawa, akizuki ritsuko, idolmaster, idolmaster (classic), hands on thighs, 1girl, :o, antenna hair, bikini, black-framed eyewear, blunt bangs, braid, breasts, brown eyes, brown hair, center opening, cleavage, collarbone, dress, female focus, glasses, halter dress, halterneck, large breasts, looking at viewer, one-piece swimsuit, open mouth, parted bangs, pink eyes, see-through clothes, short hair, sidelocks, simple background, single braid, sitting, solo, swimsuit, tankini, wariza, white background, white bikini, white one-piece swimsuit