Logan and Mariko travel to Yashida's house in Nagasaki, and the two slowly fall in love.
Tao Okamoto as Mariko Yashida: Ichirō's granddaughter,
whose life becomes threatened as a result of her grandfather's will.
A former lover of Mariko
and head of the Black Ninja Clan, sworn to protect the Yashida family.
During the atomic bombing of Nagasaki,
Logan saves an officer named Ichirō Yashida by shielding him from the blast.
Haruhiko Yamanouchi as Ichiro Yashida/ Silver Samurai: Shingen's father,
Mariko's grandfather and the founder of Yashida Industries, a powerful technology zaibatsu.
Meanwhile, Yashida's bodyguard Harada meets with Dr. Green who,
after demonstrating her mutant powers on him, demands he find Logan and Mariko.
Will Yun Lee as Kenuichio Harada: A former lover of Mariko and
head of the Black Ninja Clan, sworn to protect the Yashida family.
Mori confesses that he conspired with Shingen to have Mariko killed because Yashida left control of the company to Mariko, and not Shingen.