One day, Mai visited her uncle's house. Now entering puberty, her curiosity about men's bodies and penises grew stronger each day, and she became so obsessed with masturbation that studying was the last thing on her mind. The memory of her uncle scolding her in her childhood was deeply etched in her mind, and she unconsciously whispered, "I'm a bad girl... I need to be punished." Those words brought back memories of her uncle's warm guidance from long ago. Deep in her heart, she secretly desired only one person to punish her—her uncle. That longing began to bloom, and her masochistic training commenced. Her inexperienced bottom turned bright red from repeated spanking, her still-developing breasts bound tightly, as Mai awakened to the pleasure of being a true submissive. As both her body and mind were stimulated, new desires emerged, and she came to understand the loss of self-control—and the deep dependency on the one who controlled her.