Honghuang: From the Start, I Talked Hongjun into Becoming My Underling

[Primordial World + transmigrate + System + no female lead + behind-the-scenes mastermind + wild imagination] Also known as: "I Came Down from the Primordial Chaos. So What If I Take the First Being of the Primordial World as My Lackey?"

Haotian was an exemplary young man from the 21st century. After reading a novel about the Primordial World one night, he actually transmigrated! To make matters worse, he became Haotian, the puppet Heavenly Emperor. Just as Haotian thought he was destined to become a tool for the Six Sages to rule the Primordial World, the System awakened...

Hongjun: My lord, how should we take on the Great Dao?

Heaven: No one can conquer the Primordial World before I, Heaven, surrender.

The Eye of the Great Dao: Great Dao, let's surrender! Their firepower is too strong!

The Great Dao: Stay away from me!

The Myriad Worlds are invading? Then let's spread the calamity of the Investiture of the Gods throughout the Myriad Worlds, and all become brothers on the Investiture of the Gods!

The Ancestor of Chaos wants to devour the Great Dao? Then you can be my lackey too! A chaotic otherworld is attacking? Time for an upgrade pack!

Note: The Primordial World is a broad concept, created by combining many mythology novels. Each author writes things a little differently.

(Sorry, I'm bad at writing synopses.)