At least his answer seems genuine enough that Chizuru has no reason to doubt it, no matter how difficult it may be for her own mind to imagine such a long life.

But the latter part.. well, that's something she can relate to. At least she smiles a little as she speaks up, although it's a very small, almost thoughtful smile. "I think war is a thing you easily get sick of.. Even when you just have a regular short human life."