In the universe of Eastman and Laird's "Teenage Mutant Ninja Turtles", the Foot Clan was founded in Feudal Japan by two men named Sato and Oshi. In Volume 1 Issue 47, the Turtles and Time Mistress Renet traveled to a time prior to the Foot's creation. There, Raphael met Sato and Oshi, and, not realising who they are, he taught them about Ninjutsu. After the Turtles returned to the present, Sato and Oshi decided to follow the ways of the ninja. Oshi declared: "We must never again mention the strange shelled creatures. In time, others will join us and we will become a force to be reckoned with. So just as every journey begins with a single step... we shall call ourselves The Foot."