I just wanna ask, can he multiverse travel with Asumi, where I am it's not elaborated and I'm asking for spoilers on this subject, cause if he can't, it's kinda sad you know.
He can't bring anyone to another universe, that's a rule made by that disembodied voice. But there will be time differences, like if a year passes in another universe, it will just be a month in the Shinobi world.