I'm Fucking My Boss's Lover ~If you don't want me to tell your husband, cheat with me too!~

There's only one thing that office worker Kouji Saeki looks forward to every day--his coworker, Remi Hanazawa. One day, he happens to run into Remi in the red-light district. However, the person she's there to meet is none other than his horrible boss! Just one word springs to his mind--revenge!