When aunt Yayoi, 35, visits her nephew Hiroshi's room for the first time in a long time, Hiroshi is looking at a wrestling magazine... Hiroshi is happy to see his aunt, who used to play wrestling games with him as a child, and asks her to play wrestling games with him and perform moves on him like they used to, and Yayoi agrees... However, when Hiroshi's big, grown-up penis touches her body, her body reacts, and Hiroshi notices the lewd stain that has formed between her legs...