1girl, alternate costume, armpits, arms behind head, arms up, bangs, black bra, black panties, blue archive, blush, bra, breasts, breath, cleavage, closed eyes, collarbone, cowboy shot, gradient background, grey background, halo, heavy breathing, long hair, medium breasts, nanao (naoekaki25), navel, open mouth, paid reward available, panties, parted bangs, purple hair, scowl, simple background, solo, standing, stomach, sweatdrop, thigh gap, two side up, underwear, underwear only, yuuka (blue archive)