Master Brett Ji is the rangers mentor and the current owner of the Shinken Tower and the father of Cory Ji and former Gold ranger he is serious when it comes to martial arts he raised Ken because his father Kanji the original owner of the shinken tower was kidnapped by the Netherworld &Xandred Master Ji is very wise and was the one behind the samurai rangers and the Origami powers he was also the former Gold samurai ranger be no one knows about it and Even his son Cory does not know