After vanquishing the Demon Lord alongside his comrades, the valiant hero Kyle Lenard finds himself in a desolate aftermath. As the sole survivor, weakened and on the brink of death, Kyle triggers a mysterious relic that propels him back several years before the demonic onslaught. Armed with a newfound opportunity, Kyle joins forces with his allies Seran, the swordsman, and Riize, the martial artist. Together, they must mobilize a new defense and leverage Kyle's foresight to ready the realm for an impending conflict unbeknownst to all.