Tasara doesn't know what the Domain was thinking, sending this girl here. Either they're more desperate than she thought, or this girl is extremely foolhardy. Likely the latter. She's, hm, maybe three years out of training, judging by her stamina. Not much finesse, but exuberance in abundance, and a stubborn refusal to admit she's outmatched. If they were further from the city Tasara would flatten her, but the goal is defense, not destruction.
The flickering lasts a minute. He takes minor injuries that rapidly heal afterwards, and then the next time she lands a debilitating or life threatening blow it starts up again.
He manages to get a purple, shimmering barrier up at one point, that's almost strong enough to withstand her harder blows.
As the fight progresses, there are small oddities in addition to the flickering - the world is maybe a hair too consistent, almost not fully reacting to the power she's flinging around, at least not like she'd expect.
That is odd. Odd enough, in fact, that she's willing to spend more power than usual on this next area effect. She curls up in a tight ball protected by a shimmering field of force. After charging it for a couple seconds, it expands explosively, devastating everything in its path.
It fades -
He's just fine, the area around them devastated.
And something locks her in place, paralyzing her.
That's new. No obvious bindings, at combat levels any poisons would have already been purged, leaving hostile magic. Magic is beaten by more magic, so she spikes hers inward, increasing her strength and strains against whatever is holding her still.
It takes a lot of straining -
But she's able to shatter the binding.
The old man had, apparently, started retreating again, only to be cut off by the boy, who's more keeping him in place than anything, landing light blows too quick for the human eye to track that nevertheless heal.
Then she can skip the 'get him to stand still' step and move straight to the 'disabling blow' step.
He starts the flickering again.
The boy backs off, apparently conserving energy.
The man doesn't manage to get another seal engaged on her, though, and when the flickering stops this next time it doesn't start again. He tries forming a wooden wall around himself, branches lashing out at her and attempting to wrap around her. They're unnaturally strong, but no match for her own power, and as he grows more desperate his right arm twists, turning into a tree as his energy fails, forcing him to detach from it.
He's unable to maintain much of a resistance, after that.
Good, then maybe she won't have to kill him to get him to stop fighting. Once he's down, she conjures glowing chains that snap around his neck, ankles, and remaining wrist.
He goes down.
The boy straightens and walks over, then drags a hand down his face. Honestly, killing Danzo and disposing of the body is going to be the least trouble at this point, so - "You wouldn't happen to mind killing him? Or leaving him with me to face local justice?" He's not going to win a fight with this woman, though she seemed - not vulnerable, but not immune to genjutsu, so if she becomes an issue he still has just enough chakra for kotoamatsukami.
"First I would repair you eye, if we can find what he did with it. And second, to learn more about the particulars of this place, now that your life is no longer in immediate danger."
"He sealed it. I should be able to undo the seal easily enough; I can doll emergency medical techniques, which should be enough for getting to an actual medic. Where are you from? That twist felt extra-dimensional."
Sealed? Pocket space? She searches the old man for the scroll she saw in his hand.
"Most recently, the planet Anietch, in the Tinmdal Cluster. Just outside of Javersn."
"Don't recognize it. And as far as I know we're just on the one planet. Sorry about that," he says. "I can retrieve things from the scroll, including my eye - oh, also, what're you planning on doing with him?" Because Shisui would rather be able to honestly say he didn't kill Danzo, and he'd also rather not have to fight the woman to keep Konoha's secrets in Konoha.
"It is not generally the practice of the Polemarch to support summary execution, but in the present circumstances I do not think she will be terribly upset with me. I have neither the facilities nor the knowledge to keep him confined long term, and he clearly poses a present threat. Unless your own judiciary is near enough to take custody of him and competent enough to punish him, I will obtain from him fuller details of his crime, and then kill him."
"I can provide the details on what he was doing now. Full, exhaustive details likely involves state secrets; surely you understand why remanding someone who committed a crime on Konoha soil, against a Konoha shinobi, is against policy. He's also going to be trained against any interrogation technique known here, up to and including straight-up mindreading, unless your powers work very differently?"
"Tell me your story then," she says, "starting with your name." She extends glowing lines of force to the chains and lifts the man off the ground, turning to walk back to where she started the fight.
"Uchiha Shisui. I was interfacing between him and another party. I had a plan for reducing hostilities, which he disagreed with. He decided it would be best to kill me and take my bloodline ability for himself, and then presumably handle negotiations his own way."
"What is a bloodline ability?"
"Genetic traits? Specifically ones tied to certain abilities, like the Hozuki have a bloodline that allows them to reshape their bodies as water." Best to use a non-Konoha example, and one well known enough it doesn't reveal the state of their intelligence.
"And yours... resides in your eyes?"
"My vision is different from baseline human."
"Different enough to be worth torturing and killing over?"
They make it back to the first crater.
Anneia is sitting upright now, still untransformed. She essays a small wave.
"I think that was mostly because I'm a bit of a pest."
"Speaking of pests..." She goes over to the other girl.
"Are you going to do anything foolish?"