Haruka and Keita dated when they were students. Since there is a one-year age difference, Haruka will be the first to go to a university in Tokyo.

When she parted, she promised to go to the same university, so Keita also studied hard,and from this year onwards he will be attending the same university as Haruka. However, during the year that Keita didnt know, Haruka was changed by Takemura, a senior in the circle.

Unaware of this, Keita rejoices at the reunion, but...