Structure of the Tower

The Tower is basically devided into 3 parts: Inner Tower, Outer Tower, and Middle Area.

Inner Tower
Inner Tower is where the selected Regulars climb the Tower. The Guardians of each floor give Regulars an exam, and the Regulars must pass it to go to the next floor.

Outer Tower & Middle Area
Outer Tower is the residental district. Each floor of the Outer Tower is as large as the continenet of America on Earth. Once a person shows potential of climbing the Tower, he/she get chosen and becomes a Regular, earning the right of going up. The cultures of each floor is all different, and the climates and temperatures are varied. They are decided by the tendencies of the Guardians and the Rulers of each floor.

Each area of the Outer Tower and Middle Area is managed by the Lord (the title is different each floor. They are called President, Chief, etc.) of the area. The Lords are all Rankers.

Regulars must take the test of each floor until they reach 20th floor. Once they reach 20th floor, they can go in and out of the Middle Area. And if they wish, it's possible to settle and live at the Middle Area. All Rankers can visit Outer Tower and Middle Area as they want.