1girl, ahoge, armpits, arms_behind_head, black_hair, black_sports_bra, blunt_bangs, breasts, brown_eyes, cleavage, collarbone, gradient_background, grey_background, hair_ornament, hairclip, irene_(kanniiepan), kanniiepan, looking_at_viewer, medium_breasts, midriff, mole, mole_on_cheek, navel, original, solo, sports_bra, sweat