From Renta:

Social norms, what his parents think... All those expectations he didn't care for as a kid now bother him to no end...
Shinichi spends most of his days dealing with his mom trying to put him in an arranged marriage, and when he goes to an all guys' bar for the first time in a while, he bumps into his subordinate, Ataru.
In comparison to Ataru, who's happy because he believes it's destiny that they learn about each other in this way, what does Shinichi do about his conflicted emotions...?