There was a woman Okada could never forget—Yuka, the mother of his friend Taichi. He had secretly harbored feelings for her for years, and when he visited Taichi's house after a long absence, he accidentally discovered Yuka masturbating. Overwhelmed by emotions, his suppressed feelings erupted and he confessed on impulse. "It has to be you, Yuka-san! Please… be the first person for me!" he pleaded with unwavering sincerity. How will Yuka respond to his heartfelt confession? The story unfolds from this moment.