Heroes.
Those summoned to save a world from destruction.

But what happens after victory?

They are betrayed—by the very people they swore to protect. That was the fate of the seven who saved the world… before they were cast aside and killed.

But no one wished for such a tragic end.
Time itself recoiled—rewinding to before it all began.
Before the summoning.
Before the end.

Now, armed with the knowledge of what’s to come, the seven—no longer heroes, but ordinary students—set out to change their fate before they get summoned again.