Haruka Takayama and Yuu Sonoda, who have been closest friends since middle school, aim to attend Misato West High School together. Despite being assigned to the same class, a terrible twist of destiny sees them sitting on opposite ends of the classroom! To make matters worse, their school will close in three years, making them the final first-year class. Undaunted by this sad series of circumstances, Haruka is determined to stay with Yuu and make many lovely moments with her.