mcbox, yuuka (blue archive), blue archive, absurdres, commentary, highres, 1boy, 1girl, alternate costume, ass, ass focus, back cutout, beach umbrella, black halo, black one-piece swimsuit, blue eyes, blue hair, blue sky, blue swim trunks, blush, breasts, closed mouth, clothing cutout, cloud, cloudy sky, day, eyewear on head, from behind, girl on top, grabbing another's ass, groping, hair ornament, halo, huge ass, large breasts, looking at viewer, looking back, ocean, one-piece swimsuit, pov, sky, sunglasses, swimsuit, triangle hair ornament, two side up, umbrella, under umbrella