Running a Love Hotel with My Math Teacher

Kana is a high schooler by day and a hotel owner by night. Of course, it's a secret from everybody at school. Her grades have dropped due to the stress from her busy life, but she's kind of happy that it gives her an excuse to receive extra lessons from Mr. Saitou, the teacher she admires. One day, however, a guest at her hotel catches her eye... What!? It's Mr. Saitou!? And the room he chooses to stay in is the hotel's most popular room!! Really!? That kind and gentle teacher...!? Flustered and shocked, she's forced to go into his room! What will become of her...!?