Regular high schooler Taichi Nishimura and his childhood friend, Rin Azuma, are on their way to school one ordinary morning. Suddenly, a glo...

Regular high schooler Taichi Nishimura and his childhood friend, Rin Azuma, are on their way to school one ordinary morning. Suddenly, a glo...

Ikkitousen OVA.

Half a century after a devastating war that brought Japan on the brink of destruction, a centralized network named Sound Health Everlasting ...