1girl, armpits, backlighting, between legs, bike shorts, blonde hair, blush, breasts, cameltoe, check commentary, from below, grey background, hand on own thigh, idolmaster, idolmaster cinderella girls, kurushima gire, looking at viewer, looking down, manabe itsuki, medium breasts, open mouth, pink eyes, ponytail, see-through, sidelocks, simple background, smile, sports bra, sportswear, spread legs, steam, sweat, sweaty clothes, two-tone sports bra