What Use Does a System Have to Me, an Ultraman?

As an Ultraman, Kabu accidentally encountered a system wandering in the multiverse. System: "Congratulations to the host for being selected by the most powerful sign-in system. As long as the host insists on signing in, he will receive rewards, become a master, marry Bai Fumei, and reach the pinnacle of life!" Kabu: "System? Things in human novels?" System: "Yes..." Kabu: "Look at me, I am an Ultraman, and I have obtained the true inheritance of Ultraman Hikari. Do you think I lack plug-ins? Look at the Ultra Badge on my body, I have already reached the pinnacle of my life!" System: "Boss, please hug me!" Kabu: ...