Rei is a high school student who lost his parents and younger sisters in a plane crash when he was a child. His best friend, Eto, wants to seek revenge against the people who killed Rei's family, but Rei is not interested in revenge. Instead, he wants to become stronger so he can find what he still has in life. Eto, who is still alive but has left Rei, doesn't understand his perspective and becomes increasingly frustrated with him.All Rights Reserved