Okada had a woman he could never forget. She was the mother of his friend Taichi, Yuka. Since childhood, Okada had harbored a secret love for her. He had come to Taichi's house to play after a long time. There, he accidentally saw Yuka masturbating. His love for the woman he had always longed for exploded at the sight of her lewd appearance, and Okada, overflowing with emotions, confessed to Yuka. "I can't do it without you, Yuka-san, please be my first person!" Yuka was moved by Okada's unwavering feelings...