Imitation Play 2: Dawn

Haruma and Nagisa have overcome their strained relationship due to their "sex friends contract" and have confirmed their feelings for each other. Now that Haruma is his boyfriend, he grows sweeter with each passing day, and Nagisa is constantly at his mercy with his straightforward expressions of affection...! They
are so happy that it's almost scary, and they are enjoying a fulfilling life together as lovers, both physically and mentally. However, at work they are just senior and junior, and their relationship is still a secret.
Even when female customers who are after Haruma ask if he has a girlfriend, he can't bring himself to say that it's "me"... Then, a certain person who is looking for Nagisa appears—!? What lies beyond the unrequited love that was thought to be impossible to fulfill.

(Source: Shu-Cream, translated)