Tokiro Ehara is a brand new teacher to an all girls school. During his first day on the job, he comes across Miyako, a free thinking senior who will be hard to handle. Through Ehara-sensei, Miyako begins to learn the realities of an adult life, and through Miyako, Tokiro learns that nothing in life is as it seems.
Tokiro Ehara, an idealistic geeky professor, begins teaching at an exclusive high school for girls, with hopes of meeting young innocent minds in their most fragile state. Unfortunately, on his way to work, he meets 18-year-old Miyako and finds out that she is one wild student that needs to be taught how a prim and proper teenager should behave. He starts to believe that he is just the right person to teach her. Miyako, however, has other plans, and she's not above using her seductive wiles to lure him into submission.