There are young men who had their powers of Kamen Rider, from the start period of each riders together with Showa, Heisei, and Reiwa. Then, they are certain to meet in the shinobi factions with beautiful females, between riders and ninjas. When Shocker and Yoma are going to take down the human race, they will begin to stop them with their justice. WARNING: Mild suggestive themes containing strong language and sexuality. DISCLAIMER: I do not claim anything about Kamen Rider and Senran Kagura. Also, I own my OCs in this story.