​In an attempt to support her nephew academically, Saori opens her home to offer private lessons. Little did she know that Akira, her nephew, would develop an intense infatuation after accidentally seeing her while changing. In the midst of their tutoring sessions, Akira can no longer contain his feelings and expresses his love for Saori physically. Their encounters become a daily occurrence, with Akira repeatedly finishing inside her, resulting in Saori becoming pregnant. As the situation escalates, Saori wonders about the consequences and how her husband and family will react to this unexpected mess. Will she be able to keep everything under control or will her secret be revealed?​