3girls, alternate costume, ass, beach, bikini, blue archive, blue sky, blush, bracelet, breasts, cleavage, cloud, cloudy sky, commission, day, flip-flops, front-tie bikini top, front-tie top, green eyes, halo, halterneck, hanako (blue archive), ichihachiyon, jewelry, large breasts, long hair, looking at viewer, mika (blue archive), multiple girls, navel, nonomi (blue archive), nonomi (swimsuit) (blue archive), official alternate costume, open mouth, outdoors, pink bikini, pink hair, pixiv commission, sandals, side-tie bikini bottom, sitting, sky, smile, stomach, string bikini, swimsuit, wariza, yellow bikini