Mother Sae has recently felt that her son, who is now in his teens, looks at her differently than before. Of course, she has told herself many times that it's just her imagination, but she couldn't shake the feeling... One day, as Sae got out of the bath, she encountered her son in the changing room. "What's wrong?" she asked, but noticed something odd about him. She glanced at his hand and saw he was tightly gripping her underwear...
