Madoka and Akira lived together. Akira, who had always been a mama's boy, became even more so after his father passed away. Madoka also spoiled Akira; although they did not have a physical relationship, she would let him touch her breasts, kiss her... and thus nurtured a somewhat abnormal affection between them. Time passed, and Akira became a college student. One day, Akira suddenly said, "I have a girlfriend." Madoka went mad with jealousy and exploded the emotions she had hidden for years. She decided to stop lying to herself and wanted to win back Akira's heart. So, Madoka invited Akira on a two-day, one-night hot spring trip.
