I Parasitize the Myriad Worlds

Zhang Yang obtains the Myriad Worlds Parasite System, which lets him transmigrate across the Myriad Worlds.

He can inhabit other people's bodies, becoming a life-form much like Venom, and grow stronger by devouring their flesh and blood.

To increase his strength, he tempts each Host into working with him. Once powerful enough, he seizes control of the Host's body and transforms into a great demon, devouring all living things until he has consumed the entire world.

Some people want revenge, some want imperial power and dominion, some want the world's admiration, and some want to survive against the odds…

In this corrupt, mortal world, everyone has desires, and people with desires are easy to control.

“Zhang Wuji, how can you leave your parents' deaths unavenged?”

“Lin Pingzhi, you don't need to practice the Evil-Resisting Sword Manual. Just accept me, and you'll be able to avenge your entire family at the Fuwei Escort Agency.”

…

From then on, he continues to parasitize hosts across the Myriad Worlds, devouring worlds and strengthening himself.