So, what should she do from now on?
The most important thing to do is obviously get some prosthetics.
She can fake her death and work in secret, but there is not really a need for it.
Moreover, what about Mei? She can't just leave her alone.
Born as an orphan, her parents took care of her, and died shortly after Mei was born. She is like a little sister to her.
Moreover, for going into the sci-fi route, she will need a lot of money and workers. And especially fuinjutsu to replace the need of chips. So she will learn fuinjutsu from Kushina, now that she has free time and reason to not go on the battlefield.
Hmm... so she will return to Konoha.
Of course, she will need to hide Mangekyo Sharingan and come up with an excuse.
Which is, simple enough.
She closed her right eye, and used her headband Kakashi style to hide it. As if she has used Izanagi and gotten blind.
She then used transformation jutsu to be herself with legs and arms intact.
For using Crow Clone Jutsu, she has learnt transformation jutsu and summoning jutsu without handsigns.
Well, for summoning jutsu, she has some of her blood in her gauntlet always ready.
And since this required excellent chakra control, she can do basic healing without handsigns as well.
Sharingan+Shadow Clones for training speeds things up massively.
Now... Let's see if she can perform other ninjutsus using transformed limbs.
'Shadow Clone Jutsu!'
It didn't work.
Guess she will have to practice one hand signs.
So for now, she wrote a message on a scroll, tied it to one of her crows, and sent it out of her dimension to deliver it to Konoha. And a scroll for her buddies in Uchiha clan in his mouth.
"Give the one tied to your leg to Hiruzen. And the one in your mouth to Musuke."
The crow nodded, and went out in the real world as soon as she touched him and activated Kagekoto.
Going outside by herself in this state is dangerous.
From the looks of it, she can travel in this dimension, let's call it Shadow Realm, and be at the same corresponding place in the real world.
Well, it has some pro and cons against Kamui.
She can't just get into the Shadow Realm at one place and emerge out of another.
...Still, let's try it...
She wished to be in the Shadow Realm of her home.
Wishing didn't do anything.
So, what if...?
She activated Kagekoto.
And the moment she did, the scenery changed.
She was in the Shadow Realm of her house.
She deactivated Mangekyo Sharingan and healed it.
...
Holy crap! Kagekato is OP!
Isn't this somewhat similar to Kamui then?
Can she phase like Kamui then?
That will be up for test as well. But after she finds some Hashirama cells for her Mangekyo Sharingan. She can't get EMS since she doesn't have any close blood relative.
And she has can just explore Danzo's lairs through Shadow Realm and find out where it is. And if the seals are open, she will be able to see and memorize the forbidden jutsus. Well, she will have to deploy a Shadow Clone to be around it and wait a long time. It's not like Hiruzen will open the scroll for no reason.
...But what if a rumour spreads that a fake has been placed? He will surely check then, right?
Well, she will do it sometime later.
Since she half of her food supplies are still with her, she can practice one handed seals in the meantime. Her crow should reach Konoha in 3 days. And she can 'arrive' in Konoha in around two weeks.
She has to get back most of her important jutsus back in the meantime.
And after that, she will return to Konoha, get her compensation of a lot of money and chakra metal, copy blacksmith skills with Sharingan, and start working on her prosthetics.
White Zetsu will make the best prosthetics, yes. So she will incorporate it later to upgrade her prosthetics later.
Hmm...
Shouldn't Obito's grave have a White Zetsu transformed into him?
Afterall, his corpse was recovered.
And well, she will also need some red tinted glasses to effectively move through the Shadow Realm. Everything is purple, and while Sharingan is able to distinguish everything, she doesn't want to keep Sharingan activated all the time.
And even with Sharingan, the strain on eyes will lessen.
Alright! For now, let's get to work on one-handed seals.