In this version, Splinter was formerly a human being, an honorable ninja master named Hamato Yoshi who had studied art history as a hobby. Yoshi was banished from the Foot Clan in Japan after being deceived by the seditious Oroku Saki , who pinned Hamato Yoshi's dogi to the wall with a knife , preventing him from kneeling before their sensei which was seen as an insult. When Yoshi removed the knife, the sensei was again insulted believing Yoshi was drawing the blade in opposition to him. Being penniless, Yoshi is forced to live in the sewers. Back in Japan, Saki has been given command of the Foot Clan, which he corrupts by teaching his students how to commit robberies and other crimes. While living in the sewers with the rats as his friends, Yoshi one day found four turtles, recently bought from a pet store by an unnamed boy who accidentally dropped them in the sewer.