Information technology manager, Dominic Kim is living his life happily with his sweet, simple and beloved wife, Staila Kim. They both support each other through every ups and downs to keep their marriage always cared and content.

But what happens when one day Dominic's ex, Jaelyn Jane appears in the scenario and wishes to pursue Dominic back. Although Jaelyn has no problem with Dominic being in a married relationship with his wife, all she wants is to have her own relationship, to fulfill her own desires with her ex. Even if this means that she would become a mistress.

But what will Dominic do? Will he refuse Jaelyn and be loyal to his wife? Or will he cheat on her and make his ex his mysterious mistress?