Kitto, Sumiwataru Asairo Yori mo,

We were always together. Irreplaceable friends. There was a strong tie between us even we got separated. Several years later, we have a chance to meet again at school. There are only four classmates, but that's enough. Only us. However... "Stop acting like before." Our relationship gets cold and distant. It's only me who believed in our eternal friendship. What made us like this...? "Ayanashisai Festival" Each person was given their own color. "Red" I make up my mind to establish our good-old relationship again...