kuutamo, yuuka (blue archive), blue archive, absurdres, highres, paid reward available, 1girl, alternate costume, ass, beach, bikini, blue bikini, blue eyes, blue hair, blush, breasts, day, feet, from behind, full body, halo, large breasts, long hair, looking at viewer, looking back, open mouth, outdoors, parasol, parted bangs, side-tie bikini bottom, sitting, skindentation, soles, solo, sparkle, swimsuit, thigh strap, thighs, two side up, umbrella, underboob, wariza, water