[Birth Coffin]: The overall cross-shaped black coffin, which looks very thick on the outside, is named "Pandora" by code name. The lid of the pen ~ fun ~ pavilion www.biquge.info has a bright white silver cross inlay, and the four corners are bound to the world tree by iron chains, which is more similar to the meaning of "home" than the coffin.

Whenever the Realm Lord sleeps, the environment within the Realm changes, usually with the Realm Lord's mind changing, and the dense fog is used as the edge of the Dimensional Realm. It mainly protects the Realm Lord and the survival of the World Tree.

The World Tree is an ancient tree species that lives in the realm and nourishes the world. The thickness of the branches represents the age of life, and also represents the history of the world. The branches are the main body of the world, and it can be said that if you have the world tree, you will have the world. But the real World Tree can only be touched by Guardians.

[World Tree Leaves] carry the active carrier of the world, similar to the existence of [Door]. This is the only way out of the dimensional realm, and it is also where the key to the worlds lies.

Guardian/Grave Keeper: A companion of the Realm Lord, who has the power and duty to maintain the World Tree whenever the Realm Lord sleeps. He is also the only attendant of the Realm Lord.

[History of the Oath] The contract of power between the Realm Lord and the Guardian, whenever the Realm Lord awakens, the Guardian will gradually return the Realm Lord's rightful power, and the price is the life of the Guardian.

The Realm Lord is known as the Master of the Dimensional Realm, and whenever a Guardian dies, the Realm Lord will fall asleep to split a new Guardian and protect the peace of the Dimensional Realm.

But it is not necessarily the cause of the slumber caused by death.