[ He's a little surprised to hear that Nai's goal isn't flying, or anything fun, but rather being stronger? He wants to ask what for, but then big brother Knives agrees -- they do need to be stronger.

Okay, if that's the case, then he'll get stronger too!

Bears and wolves play by wrestling and biting, don't they? Sorry Nai -- big brother said they have to! As long as they can, they have to play, and get stronger.

As long as they can. ]

She can stay with you forever, right? I mean... [ He glances over at Nai, and his smile goes a little sad, but only for a moment. ] ...at some point we all have to go back to where we came from, don't we? But she needs to stay here, with you, and not go back. Can she?