After cargo driver Ichiro Takagi dies from a crash, a mysterious nun offers him a second life in exchange for a deal: protect Verda's destined hero.

Reborn as Valan Ferndall, he poses as a student at Weldphal Academy. Armed with knowledge of the future, he knows that one among the students is the Centurion—the hero prophesied to meet their demise by an ancient evil.

When mysterious attacks begin targeting young girls of his age in the city, Valan fears the enemy has made their first move.

The Great Demonic War may be over long ago, but evil never truly dies—they simply wait for their chance to rise again.