In the year 2XXX, in an era when human science and technology were highly developed, a sudden disaster swallowed up and assimilated all existence into a strange substance - "alien crystal"; some of the surviving humans developed a special physique that could utilize the alien crystal and turn it into their own use. These people with special physiques, called messengers, fight against alien crystals and monsters transformed into alien crystals, defending their only remaining home and protecting the future of mankind. And Izumi Araha, as the latest messenger of Canaan in Japan, what kind of flowers will bloom in this alien soil——
Intention: Don't give up on the unknown and danger in the apocalypse. This is also a refreshing way to survive!
