Under His Mercy.

Omega verse!!<3

Dazai was currently the boss of the PM [Port Mafia].
His personality changed ever since he's been the boss, he retired from the ADA [Armed detective Agency].

(This is kinda like beast au!!)

Chūya was his secretary, the one who makes the schedule for Dazai to go, either it was filled, or not. Dazai had a lot of places to go, people to talk to, since he just turned into the new boss, at the time Port Mafia and other organisations had something to talk about, so it was just temporary for Chūya to be his secretary.

the fact is that, Chūya just turned into an Omega 2 months ago, and Dazai as an Alpha. Chūya has always been with Dazai, soon, he(Chūya) was in heat, Dazai was unaware at first, until he noticed Chūya avoiding him more and more. When Chūya finally confessed they he had to go somewhere to.. pleasure himself in order to stop feeling uncomfortable..

...

Dazai didn't let that slide, he took Chūya to his office, and started to pleasure Chūya himself, saying, "You don't have a choice, Chūya, I know you've already submitted to me.".

[I'm bad at explaining!!??]