Yuri, who came to visit from the countryside, is said to be the mother's old friend. The son, who intended to stay in his room after just saying hello, was captivated by her beauty and huge breasts. The son, who had hardly ever interacted with women other than his mother, wanted to get close to Yuri, but he couldn't even meet her gaze and blushed, remaining silent. Because of her innocent reaction, Yuri invited him to learn about "a woman's body"...
