To relieve her frustration, Miho masturbates, but she is so engrossed in it that she doesn't notice the window is open and is seen by the caretaker. She tries to avoid the caretaker out of embarrassment, but she gradually opens up to Kokoro after he apologizes sincerely and shows her his kindness. The two, who were never meant to meet, end up in a passionate affair after being caught masturbating, and are soaked in sweat...