ammak, hanako (blue archive), blue archive, absurdres, highres, 1girl, ass, back, bare back, beach towel, bikini, blush, breasts, from behind, green eyes, grin, hair between eyes, halo, halterneck, huge breasts, long hair, looking at viewer, looking back, lying, on stomach, pink hair, pink halo, skindentation, smile, solo, string bikini, striped towel, swimsuit, thighs, thong bikini, towel, untied bikini top, yellow bikini