Ayano was supposed to take care of her nephew Hiroshi due to the transfer of her sister and her husband. Hiroshi, who hadn't seen him for nearly 10 years, had grown into a grown-up man, and Ayano, despite his age, was thrilled. One night, Hiroshi accidentally peeps into the couple's activities. Far from being embarrassed by Hiroshi's passionate gaze, Ayano gets a deeper pleasure than usual... The next day, Ayano approaches the pure-hearted Hiroshi with excitement. However, at that time, a big problem was brewing in Hiroshi's parents.
