Who undid the "infinite tsukuyomi" the first time? Not Hago!

[Nagi]

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By his statement, Hago didn't undo the "infinite Tsukuyomi" back then. More like he just researched it.​

 

[Dantee]

Nice catch

 

[Your Creepy Stalker]

No one undid it, otherwise there couldn't have been Zetsu's.

Then again, with no moon, the IT couldn't have been worldwide.

 

[SenseiSama]

They undid it, he had the power of the Juubi as well as the Yin and Yang seals, he said he researched it so by the time IT got cancelled most of the people turned into Zetsus

 

[Nagi]

They undid it, he had the power of the Juubi as well as the Yin and Yang seals, he said he researched it so by the time IT got cancelled most of the people turned into Zetsus

"I did some research on the same Mugentsukuyomi jutsu that mother once used...There's no mistaking it."


By that statement, he had a theory and never put it to the test before.

 

[SenseiSama]

"I did some research on the same Mugentsukuyomi jutsu that mother once used...There's no mistaking it."


By that statement, he had a theory and never put it to the test before.

He did put it to test otherwise the human race would be extinct, he told Sasuke and Naruto how to undo it meaning he's done it himself.

 

[~Ethereal~]

Let me see.

 

[hatake axel]

No one undid it, otherwise there couldn't have been Zetsu's.

Then again, with no moon, the IT couldn't have been worldwide.

Most logical answer, there was no moon at that point.
Someone else undid it, either on earth, or some other planet attacked by the Otsuukis.

 

[Holy God]

It was Hagoromo. He researched the technique itself, meaning he must have witnessed and observed it since there is no manual on how it works nor any other instances of it being used. If it wasn't him, then it would be Kaguya herself since she merged with the Holy Tree meaning the disappearance of it and it's roots.