
Haruka Takayama and Yū Sonoda were inseparable during middle school, but upon entering high school, they end up being seated on opposite sides of the classroom. Having to spend time with more friends, the two decide to make their relationship special by kissing each other in secret.
The story revolves around Haruka and Yuu, two girls who go to a high school that is slated to be shut down in three years. To share something special between them, they share a kiss, and their relationship deepens from that moment onward.