The West Kai (西の界王 Nishi no Kaiô) is King Kai's rival. He is quite arrogant, rude, and insulting. He is about half the size of King Kai. His fighters are very strong and his best and strongest fighter is Pikkon. He also is the only Kai without sunglasses with a monacle instead. His fighters include Pikkon, Tapikar and Maraiokoh. He taught Pikkon Thunder Flash and later remarks, after Pikkon fried the arena twice with Thunder Flash that "I told him not to do that, don't use Thunder Flash unless your far away I said. It's getting harder and harder to teach these kids, It's all about explosions to them".