The game tells the story of 18-year-old student Amimi Imai, who transfers to high school. She recently moved to a new city, where there is no familiar environment, friends and favorite places. But as weeks pass, Amimi meets Uta, another recently transferred student who faces the same problems as the main character. While there is no loving chemistry between them, circumstances give a chance for a budding friendship to blossom. And Amimi’s school life changes dramatically: like the night sky after a fireworks explosion.