null mayu, kisaki (blue archive), blue archive, highres, 1girl, all fours, black gloves, black hair, black one-piece swimsuit, braid, braided bun, butterfly hair ornament, cityscape, double bun, fellatio gesture, gloves, grey eyes, hair bun, hair ornament, heart, heart-shaped pupils, looking at viewer, one-piece swimsuit, open mouth, petite, pool, saliva, solo, swimsuit, symbol-shaped pupils, tongue, tongue out, twintails