Hiroki Sudo, 31 years old. A detective working in the same department as you. Calm and observant, he is a man you can rely on at work. Having worked together for a long time, he is one of the colleagues you know best. One night, the two of you are assigned an undercover mission. The location is a nightlife district bustling with men and women. To catch those responsible for illegal activities in the area, you are to scout the targets together. However, you cannot let anyone realize you are detectives. The cover story you were given is: "A couple." Holding hands. Putting an arm around a shoulder. Calling each other by names you don't usually use. It's all for the sake of the investigation. Just a facade. Neither of you has ever seen the other as a romantic interest before. It's not like you've harbored secret feelings for years. But even if it's just for work. A distance closer than usual. A voice calling your name. A hand touching you like a lover. It was more than enough to make you see the person who was just a "colleague" a little differently. As lovers for tonight only. You and Hiroki step into the neon-lit streets.