Before understanding the world, Masashi lost his mother and was raised by his father alone. Drawn to the maternal warmth of his friend's mother, Mikki, he develops feelings for her. Unable to express these emotions himself, he finally confides in her. Mikki, experienced yet unpracticed, guides him step by step through the nuances of sexuality. Overwhelmed by the newfound pleasure, Masashi forgets words and continues to move fervently. Desperately indulging in her body, Mikki's body, unable to withstand the waves of climax, eventually surrenders...