Yuu Sonoda and Haruka Takayama have been inseparable since their middle school days. The two buddies now attend Misato West High School and, while in the same class, sit considerably far apart. When the school management announces that the school will be closing in three years, they decide to make the most of their remaining time and create more precious memories together.
Unfortunately, a misunderstanding between the two results in Haruka feeling envious of Yuu, causing her to bolt. Undaunted, Yuu follows her friend and apologizes. This leads to a passionate kiss, causing them to become more than friends and embark on an intimate relationship.
