The Tower of Eternity holds unimaginable treasures... for those strong enough to claim them.

The clock is ticking, and Earth is on the verge of being swallowed by the Undead Empire. Zac has one final chance to gain the power needed to deal with the threat; the upper levels of the Tower.

But even if he survives the challenges of the 81 levels, another trial await him outside. A bounty has been placed on his head by the System itself, and the young elites of the whole sector are sharpening their knives.

Meanwhile, something is brewing in the Mystic Realm. An event that could change the fate of Earth.