Board Thread:Theories and Speculation/@comment-45954771-20200531061256/@comment-26636534-20200728223922

KuyaKevs wrote:

Maybe it was a parting gift from Toneri unbeknownst to Naruto and Hinata after the Moon assault, only to be manifested in their firstborn (Boruto). Most probably it was also the reason why he is constantly watching over Boruto.

But doesn't that imply that Toneri had the Jougan, and so could give it away? Idk, just seems strange to me how Toneri would happen to know about the Jougan.

He could have researched it during his isolation on the moon though.