den (den1115 ), mika (blue archive), mika (swimsuit) (blue archive), blue archive, absurdres, highres, 1girl, angel wings, bare arms, bare shoulders, beach, bikini, blue sky, blush, breasts, cleavage, cloud, collarbone, feathered wings, frilled bikini, frilled bikini top, frills, halo, holding, holding sandals, long hair, looking at viewer, navel, official alternate costume, official alternate hairstyle, open mouth, pink hair, pink halo, sandals, sky, smile, solo, stomach, swimsuit, very long hair, white sandals, wing ornament, wings, yellow eyes