Der Unsterbliche, vor dem die Erbin kniet

After being killed by a sinister syndicate, Gaia finds himself summoned as a useless familiar by the school idol, Chloe, who quickly casts him aside. But Elena, a reincarnator, sees his worth and makes a pact with him instead. Armed with Gaia's power to return from the dead, the duo joins forces to defeat Chloe, crush the evil organization's plot, and slay the mythical beast Nidhogg to save the world.