Who's Got Dibs on the New Guy?

Kou Ohya’s started working as an assistant for the photographer, Atsushi Tokuyama. When he has to fill in for a late model, Atsushi turns Kou into putty with his mouth. Shocked, Kou returns to the office and has to fill in the president…who he forgets is Atsushi’s twin brother, Kazushi! As he does, Kou learns that Kazushi is into him as well! Who has dibs on him!? Does he even have a choice?