Manami Kamijo learns that due to an old promise, someone from the Saeki family, which runs a large company, must marry. However, She thought I was at the bottom of the list, but my fiancé turned out to be Akihito Nishina, my boss at the company! In order to test his abilities, he disguises himself as "Nishina" and works at a company. Manami is unable to tell him that she is a candidate for Akihito's marriage, but Akihito approaches her every now and then...⁉