Many Lycanthrope lives in the Green World even though the plants grow rampant, the soil is barren, places to have a satisfactory life is limited, and only 5 settlement that maintains large influence existed. Those places were called "Five Great Villages", and are similar to sacred place for the Lycanthrope.
The "Five Great Villages" has a mysterious mound that was handed down for generations, the branch of Yggdrasil does not extend around the center of the mound, and it is said to protect the ground which is more fertile compared to others. The leaders who supervise the "Five Great Villages" were called "Five Chiefs".
The "Five Chiefs" is not a hereditary system. A person with pure strength and prominent leadership point in the village will naturally ascend to the position, in some cases, a person born with special power may also become a young chief. Their most important duty is to protect the mound from the outsiders.
The "Five Chiefs" does not function as a particular decision-making body for the unified Lycanthrope, some village join the Hourai in attacks against the other worlds, a village attempt to interact with the other worlds, and there's a village that led an isolated life from the others. In addition, their relationship with the Eight Great Dragon Kings also differ depending on each villages and the Eight Great Dragon Kings. In order to protect the village, there seems to be a person who vigilantly aim for the power of Mougi held by the Eight Great Dragon Kings.