Board Thread:Boruto Discussions/@comment-25319479-20181020083112/@comment-1458758-20181024101159

I think everyone is too focused on the "Registered Persons" part of the description of Konoha's barrier, especially when they mentioned that the system has been cut back and simplified so that it really only tracks abnormalities in new entrants. With the warning Koji gave Delta, this means that -

1. Koji isn't enhanced/altered in some way that would make his chakra irregular. So his body probably doesn't contain ninja tech like Kawaki and the Outers.

2. Delta is some way enhanced/irregular. Perhaps relating to her discussion with Jigen and how it seems to imply she doesn't/hasn't aged.

Furthermore, the assumption that if Koji is registered, he must therefore be Jiraiya is way off, cause that just means he was at some point in Konoha's database, all the traits listed are then shared by Minato, Naruto and Konohamaru, and I don't see anyone clamoring to suggest he's some old clone of Minato or something.