Yusuke comes to visit his childhood friend's house for the first time in a long time. His friend's mother, Riona, welcomes him with the same smile as always. Seeing her beauty, his childhood crush on Riona comes back to him. Unable to contain his feelings, Yusuke picks up some underwear from the dressing room and thinks of Riona. However, Riona herself sees him clutching his underwear and getting an erection... Cornered, Yusuke takes an unexpected action.
