hajika, mika (blue archive), mika (swimsuit) (blue archive), blue archive, highres, 1boy, 1girl, bikini, bouncing breasts, breasts, closed eyes, cowgirl position, feathered wings, frilled bikini, frills, halo, heart, large breasts, large insertion, messy hair, motion blur, night, night sky, ocean, open mouth, pink hair, pink halo, saliva, sky, solo focus, spoken heart, star (sky), stomach bulge, straddling, swimsuit, tears, thong bikini, torso grab, trembling, vaginal, white bikini, wing ornament, wings