I moved to Tokyo and stayed at my step aunt's house for a while. The old man was on a long business trip, so it was just the two of them, step aunt and step nephew. My step aunt, who I hadn't seen in a long time, was as young and attractive as ever, and I couldn't stop! The step aunt also sees her step nephew, whom she has loved for a long time, as a young man and sees him as a man. Step aunt and step nephew's longing and lust for each other's bodies mingle, and they end up seeking each other's bodies!