With the Time and Space Gear of the universe as the main body, the world in multiple times is rotated by the various points of the Universe Wheel. Worlds are divided into the center, the middle and the periphery according to their positions on the wheel.

In D.Y. 1506, the Universe Wheel began to fall off and collapse for no reason. Disasters occurred at various worlds - earthquakes, ground collapses, volcanic eruptions, floods. Worlds were gradually breaking away from its own orbit and shrinking toward the center. The collision between the world and the world will eventually cause the collapse of multiple worlds.

Located in the center of the Universe Wheel, this world Initial Tree's sky was tearing apart. A crack showed up in the sky and various creatures or even invaders that were from another world appeared in the crack.

At the capital of Initial Tree, Queen Efalia called all warlords of Apocalypse Knight and asked them to summon adventurers from other worlds with Grail of Apocalypse. She wanted that these adventurers from other worlds can help her defeat invaders and save the world.

You, as an adventurer, are you ready to defeat powerful and evil creatures and save the world?

[Recruit adventurers]
There are human, elf and dragonborn adventurers. A reasonable combination of different races during battle can defeat the enemy more easily!

[Fight and protect]
Turn-based battle, form your team and use skills wisely to defeat stronger enemies. Auto-battle is also available.

[Construct your city]
Use the honor points to upgrade buildings in the town, upgrade existing buildings, and unlock more functional buildings

[Grow and upgrade]
Use the collected resources to upgrade and upgrade heroes, increase hero values, and defeat more powerful enemies.

[Smelt and Craft]
Create experience books in the smithy to upgrade heroes and create equipment for heroes to wear.