Zetsu' Origin:A conspiracy
Here is the most worst theory I ever heard......
He's a plant.
He has eyes without pupils.
He has multiple personalities.
Some people theorize that he is related to the Hyuuga and that he has an upgraded Byakugan doujutsu. Some people theorize that he is an experimental monster that eats people's bloodlines. These theories are plausible, but never connect all the pieces. I know the truth.
Zetsu is an experimental prototype from the pupil-less Yamanaka clan. People underestimate the psychic powers of the Leaf's third doujutsu family. That's why they began researching how to upgrade their doujutsu through "cross pollination". He was created in the basement of the flowershop.
The Yamanaka's talent is through manipulation of psyche. They can force other's to move at their will or even invade anothers mind with their own psyche. Zetsu has also protrayed some psychic abilities. While spying, he observes withought using sight and he phases in and out of solid matter. Due to the experiments, he has more powerful and sensetive psyche. His "phasing" is an advanced form of astral projection.
"Deepthought, this theory is crazy!"
You know what else is crazy? Zetsu. He has a multiple personality. Or more specifically, his body contains two souls. When their creation started losing control, Yamanaka's top botonist used Shintenshin no jutsu to invade the monster's mind. Unable to overcome the monster's ravenous psyche, they are now trapped in one form.
And before you post in with
"Absence of Facts"
I'd like to point out that this is no joke, and a good conspiracy cannot be proven.