American orphan turned elite ninja, marries Namiko, and seeks vengeance after her murder.
Married partners bound by shared trauma and martial arts training.
Deep mentor-student bond rooted in bushido discipline.
Lifelong rivals driven by jealousy and mutual violence.
Enemies turned allies through mutual survival and justice.
Trust-based partnership for artifact protection.
Corporate villain targeting the protagonists to secure the armor.
Explore the full interactive character relationship map of Ninja