Hamato Yoshi was an orphan, who, begged in the streets of Tokyo Japan with his best friend, Yukio Mashimi, in the 1960s. When Yoshi returned a 5-yen coin dropped by the Ancient One, he took them in for their honesty, raised them as his sons, and taught them Ninjutsu. The two boys grew up together in the same house, and learning the same arts. Unfortunately, they both fell in love with the same girl,Tang Shen, another orphan taken in by the Ancient One. Tang Shen loved Yoshi more. During this time, Tang Shen spared a rat that had sneaked into the house and kept him as a pet.