Zuikou is a bald, muscular older man, that used to be master of the dojo where Ukon trained. When his disciple went to the Dark Side, he was so wracked with guilt that he became a Buddhist monk. First seen collecting alms on the street, he offers the trio free room and board in exchange for help cleaning the temple. Jin becomes suspicious of his fast reflexes and he admits to his warrior past. He tells them Shouryuu's story and explains the nature of the fatal technique to Mugen.