The main character is Professor Hitosuji, an excellent and well-known tutor. He can turn failing students into straight A students. His target this time is Yuka Ijima, the only daughter of the factory CEO. Until recently, she's been getting pretty good grades, but now she's been slipping quite a bit. Yuka has attitude problems...I have to find out why she's getting bad grades. I will take her killer body at the same time.