4boys, 4girls, akatsuki (kancolle), anchor symbol, black hair, black thighhighs, blue eyes, brown eyes, brown hair, clothing aside, condom, cum, cum on body, group sex, hetero, hibiki (kancolle), holding hands, ikazuchi (kancolle), inazuma (kancolle), kantai collection, long hair, multiple boys, multiple girls, no pants, orgy, penis, purple eyes, school swimsuit, school uniform, serafuku, sex, short hair, swimsuit, swimsuit aside, swimsuit under clothes, thighhighs, used condom, vaginal, white hair, yuuzaki