"Well, Nobodies started out as humans, but had their hearts taken," Lea said. "So they're definitely only part of a person at the start. Replicas... well, I've only met two of them- you, and a Replica of Riku at Castle Oblivion-, and from what I can tell both of you already had hearts from the beginning, even if they started out as being sort of simplistic ones. And even if it took a little while for you both to figure it out."

"Though just to be clear, that's just me guessing," he said. "I'm pretty sure it's right, but I'd need to ask Even or Ienzo to be sure; they're the sciencey types."

He considered her next question for a moment. "usually I just ask in the first way that comes to mind," he said with a bit of a shrug. "Occasionally it involves getting answers that aren't related to what you actually wanted to know, but it seldom hurts anything."