1girl, ahoge, armpits, arms behind head, bangs, 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