A Summer-Colored Miracle

People come and go throughout life, finally saying farewell. This hard truth is brought home to Natsumi Aizawa, Yuka Hanaki, and Rinko Tamaki by the news that Saki Mizukoshi, their fourth member, will be departing at the end of the summer. The four girls search for a mystical stone from local legend in an effort to preserve their friendship in light of the news that threatens it. They are shocked to learn that the magic is real after following the instructions of the purported folklore. Natsumi and the others utilize the stone to make sure they don't have any regrets left behind at the end of the summer as it approaches. These four friends, however, will never forget the vivid miracles they encounter during what may be their final summer together, regardless matter what the future may hold.