fuyubone, miyu (blue archive), miyu (swimsuit) (blue archive), blue archive, absurdres, highres, 1girl, bikini, bird, black hair, blue sky, blush, braid, cloud, crocs, day, flat chest, grey halo, halo, hat, hat on back, horizon, leaf, leaf on head, leaf print, long hair, navel, ocean, official alternate costume, open mouth, outdoors, print bikini, seabird, seagull, sky, starfish, straw hat, swimsuit, tears, twin braids, water, white bikini