In ancient times, there was a saying that Maitreya was born when the world was uneven. In ancient China, there were many places where Maitreya lived, and naturally there was more than one "Maitreya Dojo". Therefore, in addition to the Maitreya Dojo in Fan Jing, there are Maitreya Dojo in Lin Yue, Zhejiang, Maitreya Dojo in Xuedou Mountain, Qian Shan, Liaoning, and Maitreya Dojo in Jinping, Yunnan, etc.
If you want to know the story, you can refer to The Complete Works of Buddhist Stories.