After being confessed to by her childhood friend whom she hadn't seen in a long time, she realized her true feelings, and their bodies intertwined. (The story follows the character Shirayuki Mikuru, a woman with incredibly round buttocks, in SAN-102.)

To renovate her room, Mikuru enlisted the help of her childhood friend, Jun. During the renovation, Mikuru's husband left them both out shopping. Meanwhile, Mikuru, who had just been confessed to by Jun, resisted but ultimately had a physical relationship with him...