3girls, alternate costume, amiya (arknights), animal ears, arknights, bangs, bare arms, bare shoulders, beach, bikini, blue bikini, blue sky, breasts, brown hair, ceobe (arknights), cloud, cup, day, fox ears, front-tie bikini top, front-tie top, hands up, holding, holding cup, large breasts, looking at viewer, multiple girls, navel, o o, ocean, off-shoulder shirt, off shoulder, official alternate costume, outdoors, perfumer (arknights), ponytail, purple eyes, rabbit ears, shirt, short hair, sky, smile, stomach, swimsuit, upper body, yokaze (yokajie)