Hamato Yoshi (Mirage)

Hamato Yoshi was a member of the Foot Ninja Clan who was in love with a woman named Tang Shen. Tang Shen, too, loved Yoshi, but another man - a jealous, selfish man named Oroku Nagi - wanted Shen for himself. Somehow reasoning that if he shouldn't be able to have Tang Shen, nobody could, he broke into Yoshi and Shen's home, savagely beating her. Yoshi arrived and in a blind rage, slew Nagi.

Since he had murdered another member of his own clan, Yoshi and the now-recovered Shen fled Japan with their pet rat Splinter, ending up in the United States - specifically, New York City. There, they lived until Nagi's younger brother Oroku Saki arrived to kill them both in revenge.