Minato rebuked , "you believe the children of this prophecy are my own!?" as he falls off his chair clumsily, Not believing it to be true.

Jiraya deadpans and says, "the evidence compiled makes it hard not to think so. Three siblings, a beast, we have to make precautions. While the soul is in Naruto, the Kyuubi's power is in Natsumi and Mito, we have to make plans Minato. They must grow up fulfilled and happy! Even if this is a fluke, it’s rather to be safe than sorry."