Infinite cycle of the heavens

Merging with a broken main god, the protagonist embarks on a journey in the world of reincarnation.
Lord God: "The mission system is damaged.
"That's great, I don't have to try all kinds of tricks to die like my grandson... No, there are no plot rewards, how can I exchange bloodlines, how can I strengthen my skills, and how can I pretend to be happy?
Lord God: "If you change the plot, you can get plot rewards." Isn't this forcing me to change the world! …