"Be an interesting, dynamic person who is unlikely to respond amusingly to being tortured?"

She laughs.

"I've been tortured before. I don't really know if my response to it is his genre of amusing."

"I think he counts everything except refusing to respond."

"Guess I'm out of luck then. But with his attention on me... might be helpful. Keeps him distracted."

"He's got projects. And he has been training me; it's more efficient training with him than on my own. My main thought for your technique would currently be getting into his library undetected, if I go out there he'll know what I've looked at. If there's nothing now, there will be once he's spent some time looking at this world."

"So you want me to allow him access so he will develop techniques that will be useful to you. Aren't you worried he'll use them against you?"

"You can always claim he can only be here a short time, let him develop the technique, shoo him out, then bring me in for a stretch. And I'm intended to be his next host, he's hardly going to kill or maim me."

"Host?"

"When he body-jumps. His current body's failing. My bloodline is also useful to him."

She pauses.

"Let's... avoid that. I'll give him access to this place, in small pieces. I'll give you access after each session."

"I'm confident if he tried I would win the fight for my body, but I would also rather not try. That works. Do we want to find the library now?"

"Sure. Lead the way."

He dramatically points his sword upward at the ceiling - 

Which just as dramatically stops being there. There's lightning involved, and rubble being turned to dust before it hits them. He doesn't quite blast through to the sky, but there's several layers exposed.

"I assume you can't jump that high?" he asks.

"My power-set doesn't lend itself to those sort of skills, no."

"I can carry you up."

She shifts uncomfortably, but nods. Physical contact is -- fine. She's fine.

"Go ahead."

He is terrible at reading people and doesn't really notice her discomfort.

A moment to consider, and - "It'll be easiest with you on my back, but I can hold you in front of me instead."

"I don't actually care which. Just -- pick one and let's get on with it."

"I'd prefer to carry you on my back." He shifts to make it easier for her to climb on if she wants.

And climb on she does.

It's fine. She won't hurt him or -- nothing bad will happen.

He is supremely confident she will have a hell of a time hurting him, even on his back. His arms move to secure her, so she won't fall even if she lets go entirely.

He jumps, high enough to land on the jagged edge of what used to be the ceiling, briefly sticks at a nearly sideways angle, and pushes off, getting higher with each bound until they're three stories up. Then around the edge, setting her down past where it's at risk of crumbling.

She holds on tight and when he lets her down, steps quickly out of his space.

"Should I stop talking now? How does your head feel?"

If he was at all inclined to fancy he'd claim the world is visually yelling at him. He suspects that might go away if he deactivated his sharingan. He is not going to deactivate his sharingan. His head hurts, too, worse than it did when he was first getting used to the new feedback from his eyes. 

"I'm fine," he says.

She nods and resolves to say as little as possible.

"Some of the library's this way."

He leads the way with no other comment. The place is a labyrinth, and there's several other locked doors - which, after unlocking them apparently fails, he just blasts through.

There's a study-like place with biological diagrams and complex seals on the walls, two doors off of it - he opens the one on the left - "I'd suggest avoiding the right door" - and goes through. It's packed with shelves bursting at the seams with books, scrolls, and loose papers.

"There's a lot here. These're the likely key words to skim for - " And he writes down 'heart/mind/spirit,' 'Yamanaka,' 'life force,' and 'will.'