I Became Their Binding Partner

Li Huaishu accidentally obtained the Tiandao selection system. Every time he chose the safest option and got the lowest reward. In his opinion, personal safety is the most important thing. He just wants to cultivate immortality peacefully, but the plot seems to be different from what he thought. Li Huaishu once thought that he had the halo of the protagonist and was destined to be the protagonist. It wasn't until they achieved immortality that they turned out to be the real protagonists. I am their binding partner!