Chapter 1: Visiting the Past Time

Seven years since the graduation of class 3-E and many of the students have gone down their separate paths. Akari Yukimura (a.k.a Kaede Kayano or Haruna Mase) while visiting the 3-E classroom is drafted by the two class devils into confessing her feelings to a certain blue haired teacher. However, while doing so, crucial parts of the class' past comes back to them and with it, a whole new adventure.