Yes?

"What else's in the shared power list?"

It's not really a list. Some common things people do are shoot beams at witches, make platforms to stand on, or move things around with telekinesis.

"Oh right Haru mentioned the platforms. —uh, last time around, I mean." Can he make a pen float? How badly does this affect his gem?

He can and it's pretty cheap! Haru tries tugging on it.

Does it feel like anything? Is there some kind of proprioception for the teekay? Or is it purely intellectually that he has to resist it?

He needs to see what he's doing but he can keep the pen from moving when tugged!

"Coooool."

"SO cool, I can't wait."

He is going to just stop looking at Haru's face. Or, like, he's not, but he's going to act as if he is.

"If I can shoot beams at witches, though, is there even a point going after a mundane weapon?"

Just magical efficiency.

"...legit. I really should figure out how this fighting thing is going to go."

"Yeah, I want to know more about that too though I guess it's less pressing for me."

"Well, my gem still looks pretty alright," he says, peering at it. "So it's not too pressing yet..." Also he's feeling pretty reluctant for some reason. Well, he guesses it stands to reason that he would, actually? He's never gotten into a fight with a regular human, he has zero fighting instincts or practice.

"Maybe Kyubey should introduce you to Yamanaka-san and she can show you the ropes?"

"—oh, yeah, that'd probably be useful." Why didn't he think of that? That's such an obvious idea. He might be stupid. He briefly considers rewinding and redoing the past three minutes or so of conversation but he's not sure Haru wouldn't notice the darkening of his gem—it's a very short amount of time, but they are all kind of paying attention right now—and he doesn't want to risk it, it'd mean he'd need to go back even further to fix it. "Could you do that, Kyūbey?"

Sure, if she would like to meet you!

"Thank you!" Pause. "Should I tell her about the time travel, too?"

Maybe!

"It seems, you know, relevant."

"—right, I didn't mean I was thinking of hiding it, just, I know her less well and if I open with 'hey by the way you die in a month but wanna come kill some witches with me?', that might not go over great?"

"Oh, yeah, just, if you are in fact going to work with her."

"Yeah. But she should know, too. ...everyone should, honestly, even the dickish territorial magicals over in, where was it, Harajuku? But that seems even more fraught."

"The who in Harajuku?"

"Oh. Right, that was one of the things I needed to mention. Apparently some magicals get very territorial and you and Yamanaka-san butted heads with them and almost came to blows? Because you found a witch there but they didn't want you two to take it."