For exam preparation, So is staying at his aunt's house. However, his aunt, who hasn't changed her beauty over the years, approaches him in a friendly manner like a friend, making So unintentionally conscious of her and unable to focus on studying at all. Then, when reprimanded for such an attitude, So carelessly slips up and reveals that he is actually still a virgin. "What, really! Still a virgin? That's pathetic! Well… how about I help you graduate (laugh)?" Seeing the full extent of the tattoos on his aunt's body, who he has always admired, So further intensifies his admiration for her and begins to delve into adult sexuality...
