Miyori returns home in her school uniform and spends a secret, private time with her beloved uncle. She invites him, saying, "Uncle, let's play," and tells him, "No one's home today," indicating the house is empty. When her uncle asks, "What about your dad?" Miyori replies, "He's not here, no one is, so let's play at home." They start playing hide-and-seek indoors, and Miyori is found, saying, "You caught me," to which her uncle laughs, "You dummy—your slippers gave you away."
Alone in the living room, Miyori shows her pure white panties to her uncle and seduces him as usual. Saying, "You like this, don't you, uncle?" she takes off her panties and hands them to him. He responds, "They're kind of wet... Miyori," and enjoys sniffing them. Miyori watches him happily. To further enjoy their time together, she buries her face in his skirt, they carry each other on their shoulders, and share a deep, tongue-twisting kiss.
Then her father returns. Greeting him with, "Long time no see, uncle," the uncle covers by saying, "Just got back? I was worried since no one was home, so I was watching over Miyori." The father says, "Sorry, thanks as always. Miyori, listen to your uncle," and Miyori replies, "Miyori's a good girl." With her father working in the kitchen behind them, they stifle their voices and touch each other's crotches. Things escalate further, and after her father leaves, they engage in a naked, intense creampie sex session.