An alternate world has arrived. Countless monsters have passed through the rifts, wreaking havoc upon human cities and plunging humanity into a doomsday crisis! Since... more>> then, a new era emerges where every human must embrace their destiny as Class Shifters. Kingdoms are proud to cultivate elite experts, striving for top ranks in conquering the otherworldly realms! When the first king of the Dragon Kingdom awakened from a million-year slumber, armed with boundless resources amassed during his prolonged idle state, the bosses from other worlds tremble. Even the world’s the top-tier Class Shifters can do nothing but kneel in reverence… <<less