"It's probably one of those things that's assumed to be so common or basic that most older shinki like us don't think to really explain it," Kimi muses aloud, rubbing at his goatee. "Which is a problem, I suppose, and one we haven't exactly helped with... After all, it's not something you can exactly watch and pick up on your own."

"You've been busy," Ebisu points out, and Kimi smiles down at him.

"Still, young master." After a second, he pointedly jabs his elbow into Kiwami's side, making the taller man wobble a little bit.

That finally gets him to begin to explain a little more, putting his hands together with one thumb sweeping over his knuckles. "A strong will can be a part of it. It's more... overall fortitude. That's different for everyone... which might be why it's not information easily spread out." He inclines his head to her. "And why they're asking about it during a potential time of war."

After all... Fortitude is often just as important part of a fight as battle ability. Especially in a fight against other people.