osakana (denpa yun'yun), miura azusa, idolmaster, idolmaster (classic), idolmaster 1, lowres, 00s, 1girl, arm support, bad anatomy, blue hair, blush, breasts, collarbone, covered erect nipples, female focus, frown, head tilt, knees up, large breasts, leg up, lips, long hair, looking at viewer, name tag, one-piece swimsuit, pout, pussy, school swimsuit, simple background, sitting, sketch, solo, swimsuit