He was doing his job, which for some escorts includes sexual acts. He was also trying to process his feelings during all of it, that’s not an easy thing to do when you’ve been hurt before.
Been hurt? By who?? And the sex wasn't necessary for doing his job ... not the better plot
Did you even read the story? His old job, he was sleeping with his manager who put him off the idea of marriage because he felt betrayed? You obviously weren’t paying attention and just really wanna criticize this work.
He literally moved prefectures to start a new life for himself. He was bullied, criticized, judged, and cast out. Why don't you read the actual story before stating inaccurate information? And which part did you read was the sex not for work? That's all he has ever been doing. He then understands that he doesn't enjoy the sex anymore except with the person he loves. Significant character development. Now, I do wish they took the time to show more character development but saying what you said is just ignorant.
Disappointed.... the uke was facking around all the time... and then suddenly he confess to the seme ..bahhh...