Yuriko is a female teacher who has been transferred to a famous preparatory school. She is put in charge of the students' daily life guidance, but as it is a preparatory school, all the students are serious and excellent. The only thing that worries her is that they are lacking in spirit and are closed off... One day, Yuriko is caught with a photo of her up her skirt during class, so she calls the student in and asks him about it. However, Yuriko is worried about the student's future because of his shy attitude, and decides to give him adult daily life guidance to turn him into a respectable "man" by the end of the first semester, which is about to end... by the second semester.