 He also says the Rider's grand plan will be completed by our sons, showing that he did indeed know Tendou's father.He tells Kagami of the secrets behind the Masked Rider System in episode 41, displaying his knowledge of the Natives and how they created the system.He also tells Tendou that his father was the one who installed the Red Shoes system in the Zecters, and in turn, Tendou decides to trust him because he too desires to walk the path his father took.