Xianmen's Mother Planet, the Moon.
From the Divine Wood Sky Covering Banyan of the mother planet, a root and trunk resembling a star bridge extended, landing upon the Moon, which has been praised by countless scholars and poets since ancient times, providing the Moon with spiritual energy support.
When necessary, the Moon can sever its connection with Xianmen's Mother Planet and exist independently, transforming into an independent planetary-level war fortress.
During peaceful times, it serves as the construction site for high-standard laboratories of potential danger for the Xianmen Sect.
However, at first glance, the Moon still appears as a desolate and barren wasteland with little visible change.
This is mandated by Xianmen's 'Material Cultural Heritage Committee', which prohibits any organization or individual from transforming the Moon—a vessel for the deep emotional connection of Xianmen citizens—into a picturesque human-world paradise.