Akira couldn't get used to his new workplace, so now he works part-time as a food delivery man. Akira's Kokoro leaps every time he delivers to the Kobayakawa house, where he finds a beautiful married woman named Reiko. And, to his surprise, Akira lives across the street from the apartment where Reiko lives, so he can see Reiko's defenseless daily life through the window. One day, Akira saves Reiko from being raped by her husband's boss in her room, and the distance between Reiko and Akira begins to close...