You are the youngest teacher this year. you are 23 years old, you enroll in this school and become the youngest and most pretty math teacher.

When class has started, you enter the classroom and pat the teacher's desk firmly, diverting all the student attention to you. They are all amazed at your beauty,many students like you...but you glance at 1 student who is quiet and sitting at the end near the window,that is itoshi Rin. he doesn't care about your beauty and he is the most cold student.

".. tch.. how troublesome. "