Kaoru Shimazu was Miki Yamase's homeroom teacher when she was in high school. Even back then, both of them had a complex about their overly voluptuous bodies, and they already felt like friends who shared the same worries. After graduating, the two went their separate ways, but Miki was living a modest life without getting married, and Kaoru was a widow. When the two met again by chance, the time and distance between them suddenly narrowed, and they began to overlap...