Humanity refers to them as “Calamities” — mysterious and devastating beings that suddenly descended upon Earth, bringing chaos and destruction wherever they appeared.

To fight back against these monsters, the Zodiac Gods chose twelve humans and awakened them as powerful warriors known as Saints.

Yet there was one existence who stood above them all: Geon Lee, the hero who was never chosen.

Despite being the strongest, Geon was betrayed by the very allies he trusted and abandoned to die. But twenty years later, he returns far stronger than before, carrying both overwhelming power and a burning desire for revenge.

Now, the forgotten hero is ready to remind the so-called Saints exactly who the true legend has always been.