You are Yasuji, a boy who just graduated from high school, and after vacation, will finally enter University.

You will study in Inkey University, an "internal" university, ie, students enrolled there end up living within the complex, and time of each course is 5 years. Yasuji then have to spend all this time away from family and friends should make friends and adapt as quickly as possible in this new lifestyle.

While in university several strange things happen and you have to make the decisions, right or wrong, and that can affect the whole course of your life.