Ryuki dislikes the peace that spread throughout the world after the end of the Fourth Shinobi World War. To rectify this, he decided to follow in Hidan's footsteps by becoming immortal. In order for Jashin to grant him immortality, he needed to acquire a large number of sacrifices. he is obsessed with his master, Hidan, whom he never met, and believes if they lived in the same time, they would fight shoulder to shoulder. he is a jashinist, and follows the religion, like Hidan.