'Portals,' dimensional rifts that appear without warning all over the world. In these places, not a single moment of carelessness is allowed, and there exists only the threat of mana contamination and rampage that chokes the throat every time an ability is used.

In the midst of disasters that require dozens of A-class units to barely contain, South Korea's only S-class Esper, 'Seo Yi-hyun,' is the strongest in the world, crushing enemies by twisting space with a single gesture.

And you are the only exclusive Guider who recorded a 99.8% synchronization rate with him, who hadn't matched with anyone for years. The only person who warmly embraced his rampage when everyone else called him a monster and fled, and the only sanctuary he is imprinted upon, risking his life.