5 years after the world changed, the final boss appeared.[The final boss for area Earth, the Frost Queen, has appeared.]The final boss! If we can just defeat her, our lives will go back to normal. The top five players in the world, including Specter Seo Jun-ho, finally defeated the Frost Queen... But they fell into a deep slumber.And then 25 years passed..."A second floor? It didn't end when the Frost Queen died?"Specter awakes from his slumber.