koume keito, 4girls, bikini, bikini under clothes, bird, blue eyes, blue hair, blush, braid, brown eyes, brown hair, clenched teeth, cloud, day, dog, dutch angle, elbow pads, fang, fingerless gloves, flat chest, gloves, glowing, hair ornament, happy, hat, inline skates, knee pads, long hair, multiple girls, necktie, newsboy cap, one-piece swimsuit, open clothes, open shirt, outdoors, outstretched arms, purple hair, roller skates, school swimsuit, shirt, short hair, single braid, sitting, skates, sky, smile, spiked hair, spread arms, spread legs, squatting, straddling, striped clothes, striped one-piece swimsuit, sweatdrop, swimsuit, swimsuit under clothes, teeth, tongue, vertical-striped clothes, vertical-striped one-piece swimsuit, water, wind, yellow eyes