The heart belongs to family, but the body is a delicate relationship with others. Spending a week alone with her stepmother, it's impossible for Wakatsuki Aya to avoid making mistakes. (VENX-308)

After marrying her older husband, Aya lived with her stepson, Tatsuya, and the three began building a new family. Aya assumed that because she was only a few years younger than her husband, her relationship with Tatsuya would be as relaxed as that of a friend and father. However, Tatsuya fell in love with Aya, seeing her not just as a stepmother, but as a woman. Even though their feelings differed, they still spent a week alone together…