4girls, ahoge, aircraft, animal ears, arona's sensei doodle (blue archive), bare arms, bare legs, bare shoulders, beach, bikini, blue archive, blue eyes, breasts, brown hair, campfire, cold, competition swimsuit, day, eyewear on head, fire, firewood, frozen, full body, goggles, goggles on headwear, grey hair, hair bobbles, hair ornament, halo, hat, helicopter, horizon, hoshino (blue archive), hoshino (swimsuit) (blue archive), ice, innertube, large breasts, long hair, looking at viewer, low twintails, luoxuan dazhuang ji, multiple girls, navel, nonomi (blue archive), nonomi (swimsuit) (blue archive), ocean, official alternate costume, one-piece swimsuit, one eye closed, open mouth, outdoors, pink hair, sensei (blue archive), serika (blue archive), serika (swimsuit) (blue archive), shiroko (blue archive), shiroko (swimsuit) (blue archive), side-tie bikini bottom, snow, snowman, sun hat, sunglasses, swimsuit, twintails, very long hair, water, white bikini, white headwear, winter, yellow bikini