愛する恋人を大嫌いな旧友に寝取られた件 ～上司で恋人の強気な彼女～

The main character, Wakaba Asakura, is dating a woman named Yayoi Yoshimine.
She is a woman of talent and beauty who is admired by everyone for her work.
After making a passionate approach to her, Wakaba gets her OK and after living with her, they find happiness in their life together.
However,...... the only strength he could boast of was that he was "Yoru Yoi's boyfriend".

One day, Wakaba is assigned to a big deal that comes into his sales department, The client was Takumi Suzuki, who had bullied her in her school days. With the support of Yayoi, who accompanied him on the sales trip, the negotiations seemed to be a success, However, the negotiations were suddenly cancelled later that day. Wakaba is depressed, and Yayoi, unable to stand by and watch her boyfriend make such a mistake, decides to negotiate directly with Takumi.