1girl, black_sports_bra, blush, breasts, cameltoe, girls_und_panzer, grey_background, gym_shorts, leg_up, long_hair, looking_at_viewer, midriff, navel, nishizumi_shiho, onsen_tamago_(hs_egg), open_mouth, shorts, solo, split, sports_bra, standing, standing_on_one_leg, standing_split, sweat