yamamura umi, yuuka (blue archive), blue archive, 1girl, arm behind head, arm up, bare arms, bare shoulders, black halo, blue eyes, blue hair, blue sky, breasts, cleavage, closed mouth, cloud, cloudy sky, collarbone, cowboy shot, day, dress, floating hair, frilled dress, frills, halo, halterneck, head tilt, large breasts, light blush, long hair, looking at viewer, parted bangs, sky, sleeveless, sleeveless dress, smile, solo, spaghetti strap, standing, sun, sundress, two side up, watermark, white dress