Huantian, master of the Three Thousand Supreme Fantasy Laws.
"I, Huantian, one of the Three Thousand Supreme Demon Gods and master of one of the Three Thousand Supreme Fantasy Laws, wish to sign an equal contract with you, Lin Tian!"
He signed it.
From then on, Lin Tian's path to invincibility began from the start. Whenever he felt like it, he would manifest a System, and whenever he was bored, he'd watch from behind the scenes as his Hosts worked themselves to the bone for him. Or he'd send out a few missions and watch the Hosts try to complete the tasks he'd casually come up with.
This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.
Who are you to be the protagonist? Huantian, one of the three thousand demon gods, was so full that he ran to sign some shitty contract with the protagonist. Could it be that after signing, Huantian would get any benefits? No, then why would he sign with the protagonist? It's really funny.