According to the Bingo Book, Hatake Kakashi has two dæmons.

No one in their right minds would ever expect it of him, and that’s why he’s the one best-suited to the job.

It’s Jiraiya who brings him the news, bare hours after the decision has been reached.

“No,” Obito says, flat and cold. It’s testament to how much she’s hardened over the last year that Hinata doesn’t even blink. She certainly doesn’t waver, feet planted firmly on the other side of the bed and eyes fixed on him. “Do you really think I would come to you if there was any other option?” she asks quietly.

“Shh,” Kakashi breathes against his lips, and there's a look in his eyes that he gets on the very worst missions, in the middle of a battle, when there's nothing left in him of restraint or anything beyond instinct and act-react. “You’re safe, Shisui. And I'm going to fix it.”

Fox dies. He wakes up. And then things start getting weird.