1girl, ass_visible_through_thighs, bare_shoulders, bikini, black_bikini, blue_archive, blue_sky, closed_mouth, cloud, collarbone, day, halo, hands_up, holding, holding_towel, horizon, long_hair, looking_at_viewer, michou, navel, o-ring, o-ring_bikini, o-ring_top, ocean, outdoors, purple_eyes, purple_hair, sky, smile, solo, standing, swimsuit, thigh_gap, towel, two_side_up, water, yuuka_(blue_archive)