"...Yes. Yes, I am. Where is everyone else?"

"Chihiro is lurking... Somewhere. Creepily. Sasuke's probably on the roof again, he's been brooding, I could make a clone and dismiss it and get an update from the network pretty quick? Boss-me is... Uh probably with Tsunami and Inari. Or if Inari took off again Sasuke said to have a clone follow him. Sasuke told Tazuna not to go back to the bridge until you woke up so Tazuna's probably in the kitchen, he was talking about having a meeting with some people while he was having to wait..."

"Okay. Gather everyone up. We need to have a group meeting."

" - Everyone everyone or Team Seven everyone?"

"Team Seven everyone. Plus Tazuna."

"Alright!" And he dismisses; soon enough main Naruto is darting in with Tazuna and Sasuke, and a clone's alerted Chihiro.

Chihiro arrives quickly.

"Okay. So first thing, that hunter-nin took Zabuza elsewhere before disposing of him, yes?"

He nods.

"Right. Then I think it's safe to assume Zabuza is not dead."

"It is standard procedure for all hunter-nin to dispose of their quarry's corpse on site."

Fuck. "How long do we have?"

"Probably about a week. Faking a death the way they did it still involves a near-death experience. It'll take him time to recover."

He's close on some second level spells, but not that close... He thinks. Maybe if he convinces Kakashi to clear him for a shadow clone...

He rubs at his forehead. "Chance we'll have warning?"

"Low. Of course, Gatou may decide that Zabuza on his own isn't enough and send some extra thugs as backup. In which case, higher."

" - If we have like a minute's warning before he attacks us I can make us harder to hit, but I'd need to be able to touch whoever I'm warding. That particular spell lasts two hours, and it'll burn hard-to-renew resources if I want to be able to use anything else that day." Unfortunately every spell except Mage Armor has a target of 'personal'. He's not confident he'd be able to teach the others in a week, but - he'd overheard Zabuza and Kakashi's chatter. Copying techniques... "The others - Kakashi might be able to copy them." Probably he'd have to copy the incantation, movements, and the writing - and Sugira will probably have to teach him to read magic the slow way. "I can use four of my techniques a day, but three I need to decide ahead of time. I'd have one extra if I dropped the one I use to shield my mind, and I can use more by burning resources."

It's a shitton to reveal, but Sugira recognizes they can't back out now, and he'd rather drop secrecy than risk his team getting killed. Likely, Kakashi will fight Zabuza again - an uncomfortably close match - while the genin fight that ally and any other backup. And, demonstrably, Sugira's not used to tactics in this world. (Also even in his prior life he was almost never in serious fights, and never in anything that could permanently kill him.)

"Well. That's interesting. Tazuna, it should be fairly safe for you to return to work today. Naruto, send some clones and Chihiro, you go with him. And under the circumstances, you can stop holding back."

"Understood," she says, and fades into invisibility right in front of them.

Tazuna startles as an unseen hands taps him on the shoulder.

"Let us go," says Chihiro's disembodied voice.

Invisibility. That'd be second level, for him. But she's following Kakashi's orders. Suggests an internal spy, rather than someone for another village. He'd suspected that was more likely anyways...

He stays put as Naruto rushes off with Chihiro and Tazuna.

"So!" Kakashi says once the others have left. "Now that we have a bit of privacy, why don't you tell your favorite jounin instructor a story about why you know techniques he's never seen before."

" - Do you want the sensible explanation or the weird one."

"Let's go with the weird one. Everyone else on this team is weird, it can be a bonding exercise."

" - This will take a bit." He pauses, to order his thoughts. And he'd had a perfectly good lie about remembering a past life pre-chakra lined up, too... "So about five years ago I woke up in the body of a kid, for reasons that I think sum up to 'I got the attention of a bored omnipotent being.' I'm fairly sure she swapped my and Sasuke's places, and that we're - essentially the same fundamental person, she's been known to instantiate two of someone before if it makes a story interesting. I'm not from this planet, probably not this dimension. My techniques would be fairly simple where I'm from, but I'm having to work to rebuild them because I lost my powers and all but the most basic of spells. ...Your planet sucks, by the way."

"So how old are you really?"

"A hundred and thirty one. 'Immortality' was a power I lost."