A union in the school world of the Silver Dimension. In short, it is known as the principal of all schools. All schools are ordered to answer to the one who has control over them, titled "Quan Xiao Meng Meng Zhu" (Union Leader). Many denizens in the Silver Dimension dream to take that place and become the strongest person in the world. Liu Bian was Meng Zhu before he was dethroned. The successor of this position was Liu Xie, before Cao Cao, Sun Quan, and Liu Bei separated the country in three.