Houkago, Love Ho de, Sensei to

"That's just the kind of hotel this is, you know?" My teacher has got me pinned down in the S&M room at a love hotel...! What should I do? I can't run away...!! My name is Kana; I'm a high school girl by day and a love hotel owner by night. Of course, it's a secret to everybody at school. My grades have dropped due to the stress from my busy life, but I'm kind of happy that it gives me an excuse to receive extra lessons from Mr. Saitou, the teacher I admire. One day, however, a guest at my hotel catches my eye... What!? It's Mr. Saitou!? And the room he chooses to stay in is the hotel's most popular room, the S&M room!! Really!? That kind and gentle teacher...!? Flustered and shocked, I'm forced to go into his room! What will become of me...!?