Kenjaku may have been the head of Zenin Clan.
And fought with the head of Gojo Clan.
Head of Zenin at that time was using “Ten Shadows Technique”.
Which is one of the strongest Technique.
Even with that, he couldn’t defeat Gojo….
So he found out that he can’t win against Six Eyes.
Then he killed the baby Gojo!!
This theory may be incorrect.
But if you sort out the story from 1000 years ago, it makes sense.
Let’s see the details below!!
Kenjaku and Tengen
Let’s see the situation of Kenjaku and Tengen first.

Jujutsu Kaisen Epi.66 ©芥見下々/集英社・呪術廻戦製作委員
Tengen
- Have to Merge with Star Plasma Vessel every 500 years
- Six Eyes will guard him at that time

Jujutsu Kaisen Epi.145 ©芥見下々/集英社・呪術廻戦製作委員
Kenjaku
- Lost to Six Eyes twice in the past
- After that, he switched to sealing instead of erasing Six Eyes
So Kenjaku fought Six Eyes every 500 years and lost.
So the Time Table will be like the below.
He lost 1000 years ago and 500 years ago.
Then he gave up on defeating Six Eyes.
But he was a bit quick to give up, isn’t he?
He’d have to come up with a better way other than that.
I think that’s using the head of Zenin Clan.

Jujutsu Kaisen Epi.117 ©芥見下々/集英社・呪術廻戦製作委員
He tried to use the head of Zenin Clan to see if he could defeat Six Eyes.
And he realized.
He can’t win…
So he switched to sealing instead of erasing Six Eyes!!
This was about 400 years ago.

Jujutsu Kaisen Epi.117 ©芥見下々/集英社・呪術廻戦製作委員
Because Gojo said that was Edo or Keicho period in Ch.117.
That period is around 1600.
The above can be summarized in the following timeline.
By this way, it makes sense why he changed his plan.
That means he used to be the head of Zenin Clan!!
By the way, my tweet was a bit wrong.
Kenjaku used to be the head of the Zenin clan…?
He was the one who fought with the head of Gojo clan.
And found out that he can’t win even with Ten Shadows Technique.That’s why he killed Six Eyes when it was a baby second time…😱#JujutsuKaisen#呪術廻戦 pic.twitter.com/eWMznhgqBC
— Kyle Anime Scouter (@kylescouter) April 15, 2021
According to the timeline, he killed the baby before the aristocracy!!
It’s nice to have a timeline like this to keep things clear…lol
Anyways, a lot of information will be revealed in the future as the story goes.
What will happen next?!
I can’t wait for the next chapter!!