Goddess of Ice; Reborn as Naruto’s twin sister [Completed]

'Okay Yuna, calm down. No need to panic. You just have been reborn as an unborn baby. Nothing special ...right? After stumbling into a new situation, the first step should pretty much always be to gather information, however as an unborn baby there currently isn't much, I can do about that. Listening to my parent's conversations might be useful, unfortunately, my ears aren't developed enough to do so yet. Guess I'll just do some cultivation for now'

So, for the next few weeks, Yuna spent her time meditating. As a fetus it's impossible to strengthen her body or cultivation without negative percussions, however refining one's soul is something that can be easily done. No matter how mature a soul is compared to the body there will be no negative effects on future cultivation. The earlier someone starts the better.

After just 2 months Yuna managed to get her soul to mature to the age of 3. Her previous experience and superior cultivation technique naturally played a huge role in achieving that kind of ridiculous speed.

Now that her soul has slightly matured, she can...pretty much still do nothing more than she previously could, except for having access to her mindscape. Usually, someone would need some practice to enter it, however, those that have done so once can easily do it again. This naturally includes Yuna.

After just a bit of concentration, she felt the familiar pull on her mind and found herself in her mindscape. A dreary atmosphere. Metal pipes coming out of the walls and ceiling with water slowly dripping out of them. Dirty looking ground reinforced with brown bricks and a stream of water steadily flowing next to the brick walkway. In other words, a sewe...

'SHITHOLE! What's with this shithole? What happened to the vast sprawling mountains of my previous life? My glacier's. My snow-covered forests? As soon as I get my soul to an appropriate level this whole thing will be renovated. Seriously what's with this weird physical representation of the soul? Is it like this for everyone here or just for me? Probably for everyone since I don't think I have even the slightest connection to... this. For now, let's explore. Maybe there will be some interesting to find here.

Just like this Yuna started exploring her mindscape. Some people might think of this as redundant, after all, what's the use of exploring your own mind? That is certainly not the case, after all, there are a lot of things your own mind hides from you. And as if to confirm that belief, after just 30 minutes of exploring Yuna did indeed find something she hasn't noticed before. Something that obviously should be there, but Yuna never thought about the possibility too deeply. That was a connection to another mindscape. Her new mother's mindscape.

'What a curious thing this is~ An unborn child has no mindscape. A soul that young is simply incapable of forming one. I however matured my soul even before I was born, something that is usually impossible. After all, no matter how talented a normal child is, it won't be capable of cultivating in the womb. For me, however, this was something easily done, after all, I still have the memories from my past life. And this led to these interesting phenomena. A direct connection between the mindscape of mother and child. Pretty sure this will be lost after the umbilical cord is cut, but for now, let's keep exploring. I might get to see some useful memories from my mother. I might be able to at least find out what kind of level this realm is at.'

Just like that, Yuna kept walking forward and crossed the border between her own mindscape and her mothers. Unsurprisingly it had the same "sewer" look as Yuna's mindscape, confirming her guess that they all look like this.

Finding memories inside a mindscape is actually pretty easy. In an unorganized mind, they are pretty much floating around everywhere. The tricky part is finding actually useful memories. Especially if you don't want the other person to notice that you are browsing through their mind.

'Let's see what we got here. I see Uzumaki Clan huh. Having a big clan as a supporter should be useful. Never mind they got wiped out. What else do we get? Ramen. Ramen. Again Ramen. Ichiraku? What's that? Never mind it's just a ramen booth. Err Mother? There is other food than Ramen you know. And why in the world are like half of these memories either eating Ramen or remembering how she ate some Ramen. What the hell!

From these memories, I guess my father is probably this Minato guy. Let me guess: dead as well? Oh? He seems to be alive and quite important as well. Hokage huh. What a weird title. At least I will get some support in my rise to the top.

Ninjutsu...Genjutsu...Chakra...Urgh, I'll need a more cohesive explanation instead of some random memories to understand that stuff. All I got is that Chakra is this world's Spiritual Qi... I think.'

Just like that Yuna keeps wandering around her mother's, Kushina's, mindscape to get as much information as she can of this weird world whose rules seem to be quite different from her old one. For example, when she saw an 8-year-old kid inside Kushina's memories use the [Kawarimi no Jutsu] she almost fainted out of shock. An 8-year-old performing a teleportation technique is already absolutely insane, but swapping two objects through space is a whole other level of ridiculous. While this is considered a "basic-jutsu" , something like flying which pretty much every cultivator can do is thought of as almost impossible to do. It will probably still take Yuna a while to get used to this world's common sense.

'Guess this is pretty much all the information I can get out of this. I don't want to be found out after all. I guess this can be considered a pretty decent harvest. At least I won't be going in completely blind.'

However, just when Yuna was about to turn around she felt something she certainly didn't expect to feel in here. A massive amalgamation of hatred, killing intent, and the energy called chakra. Unlike Kushina's chakra, however, this one felt untamed and violent.

'Oh? Where does this come from? It feels very powerful, but at the same time, it seems to be suppressed by something. Is there something sealed inside my mother? How curious~'

Just like that Yuna decides to follow the powerful presence deeper into her mother's mindscape and after just another 5 minutes of walking she reached its source. A gigantic nine-tailed fox chained to an even more gigantic boulder. Every one of its tails was chained separately to the bolder. The same for each of its legs, arms, and head. Additionally, a stake was pierced through the tails, feet, and hands completely restraining it to the boulder.