The Married Manager's Scandalous Services - The Pleasures of the Night Shift

"Quit your yammering and get back to work!" That sharp-eyed woman is Kanade Otoya, the store owner's wife. The manager here isn't just tough; she never changes her mind and won't tolerate a single word from others about how the shop is run. However, she's convinced things aren't going well because of everyone but her and flips out at me and the part-time staff, so I haven't been able to find a solution. I force a smile in an attempt to avoid her wrath, and she heads to her office, where she remains for the next few hours. When I glance at my watch, I notice it has gotten quite late. It should be okay for me to go home now. I approach the door to the manager's office to let her know I'm leaving. "Khh… mmm… mm… Ngh… mm… ah…" What the hell are those sounds? I'm about to knock on the door when I notice strange noises coming from within. There's a kind of vulgarity in the air, which makes me instinctively try to hide my presence. Why is she moaning like that…? What's going on inside? Full of trepidation, I softly crack open the door…