Makoto, a young man who visited his uncle's aunt's house in the countryside for the first time in a long time, is fascinated by the ripe limbs of his aunt Hitomi Ohashi, who hasn't seen him in a long time. Makoto herself has longed for Hitomi, her sister, as a substitute for her mother after her mother died. And while spending time together, Makoto gradually begins to agonize over his aunt's ripe body. And the day to return to Tokyo. The moment I was alone with my aunt, my relatives' aunt and nephew finally became one ...