As Kushina saw and felt Her brothers presences she started smiling from ear to ear. But before she met her brothers she wanted to learn as many Jutsus as possible.
Kushina first went to the Hokage building and found the scroll of sealing. Kushina activated her E.M.S and opened the scroll of sealing to memorize every Jutsu in the scroll. Kushina soon Memorized everything and put the scroll down after 10 seconds.
After memorizing the scroll Kushina disappeared from the place she was at and reappeared on the hokage cliff as she digested all the Jutsus in the scroll and thought 'wow ok um no wonder tobirama sealed the scroll. the Edo Tensei and reaper death seal are the some of the nicer ones in the scroll.'
Kushina then started practicing the Multi shadow clone jutsu and Rasengan which was also in the scroll.
Kushina started practicing the Multi shadow clone Jutsu and succeeded in makeing 1000 clones first try with each possessing as much chakra as the nine tails. Kushina nodded and released all of the clones and then tried the rasengan.
when Kushina started makeing the Rasengan Kushina realized she needed to train her chakra control and dispelled the jutsu because She couldn't control how much chakra she was putting into the Rasengan since She had enough chakra that if she couldn't control it the Rasengan she produces would be 20 times the size of earth.
Kushina then made 100 shadow clones that had 10x more chakra then Kurama and had them practice chakra control by practicing the ones she already knew and coming up with new ones to practice. Kushina then Instant transmissioned in front of itachi.
As soon as Kushina appeared in front of Itachi she knocked out kiseme and started hugging Itachi.
Itachi just looked confused since kiseme was suddenly knocked out and a tall women started hugging him. but as Itachi looked at the women the more confused he became because the women looked like she was Kushina but Kushina looked like she was 14 last time he remembered seeing her.
as Kushina was Hugging Itachi she said "Oniisan I missed you." and she started breaking his ribs with her hug. As Kushina started breaking his ribs with her hug he realized that this was indeed Kushina and said "Kushina your breaking my ribs."
After hearing Itachi she lightened her a hug a little so she wouldn't crush him but would still break his ribs and said "that's the point." as Itachi just showed a pained but somewhat happy face and started hugging Kushina back even though she was purposefully breaking his ribs right now.
After hugging Itachi for about 5 minutes Kushina let him go. After letting Itachi go, Kushina summoned 10 shadow clones and had them return to konaha and start working on a laboratory in konoha and make some healing vats so Kushina could start healing Itachis ribs.
After sending the clones off Kushina grabbed Itachi who was trying to not fall down due to the pain of having the majority of his ribs broken, and made him sit down.
After Kushina made Itachi sit down she put her head in his lap leaving no time for him to complain or say anything. after putting her head down Kushina asked "how are you Oniisan." to which Itachi didn't say anything because he didn't want to burden her. Realizing that Kushina continued.
"Oniisan don''t you want to ask why my body seems to be one of an adults?" to which Itachi was curious so he decided to ask "Kushina why do you have an adult body?" Kushina decided she was going to tell him the truth and said "Because for me I've been gone from this planet for a little over 20 years."
Itachi a little confused but very curious asked "What do you mean Kushina?" Kushina just cuddled a bit closer to Itachi and said "well before I tell you, mind telling me why your hiding what I gave you with a transformation." Itachi realizing that Kushina ment his wings horns cat ears and fox tail said "Because people would ask to many questions I'f I didnt."
Kushina was a little sad at his replie and said "deactivate the transformation jutsu and I'll tell you what I mean't." Itachi just sighed and deactivated his transformation which hided his animalistic features as Kushina said "you look much better now Onii-San." to which Itachi just said "thank you."
Kushina then elaborated saying "I was in another universe and outside of our time and space." Itachi just even more confused whiched caused Kushina to lightly chuckle as she said "you wouldn't understand it anyway but remember that for me I was gone for a little over 20 years but it was only around 4 years for you."
After Kushina said that Itachi Just accepted it but was a bit sad and started petting Kushina and wrapping his tail around one of hers as Kushina curled into the fetal position and Itachi said "I'm sorry." as tears started falling from his eyes and landing on Kushina.
Kushina the sat up and then sat in Itachis lap and said "I know you are Oni-chan." as she put her head on his shoulder and started crying with him.
After crying for about 10 minutes Kushina said "Onii-chan Eat this." as she took out a senzu bean from her void space and put it in Itachis mouth. Itachi then ate the sensu bean and felt all his injuries being restored even his fatigue was restored.
After Itachi ate the bean he realized that what Kushina gave him was so valuable that countries would start wars just for a single one. As Itachi looked at Kushina as Kushina said "I wont tell you how I acquired that or let you complain that I gave it to you."
Itachi just sighed and was saddened by the fact he didn't know much about his little sister anymore. Itachi then said "I'm sorry I left you alone for 20 years." to which Kushina just shrugged and said "Onii-chan you had no control over that but I didn't spent 20 years doing anything besides training really and now I could blow up our planet if I step on it wrong."
Itachi felt a shiver go down his spine and felt it was better for his sanity if he just took that as an over exaggeration. After sitting in Silence for a while Kushina started hugging Itachi a bit tightly and wrapping her tails around him as she said "Onii-chan please never die on me." and tears started coming out of her eyes as Kushina started crying again.
After a few minutes passed by with Itachi petting Kushina and Kushina calming down Itachi said "I wont promise you that but I'll try to stay alive for you." After Itachi said that Kushina got up and said "Onii-San I'll be going now don't get into a dangerous situation please. I have to make sure our little brother doesn't die and train him since you fricked up his mental stability and me not being there definitely didn't help."
Kushina then stood up and pulled a watch from her void space and handed it saying "the watch will explain itself to you just ask it.". after saying that Kushina disappeared from sight.
Back in Konaha Kushina reappeared on the fourth hokages head with instant transmission.
After reappearing on the fourth Hokages head Kushina turned around and walked towards the cliff to enter the lab her clones were building. As Kushina entered the lab through the entrance her clones had built.
Entering her new lab Kushina looked around and nodded approvingly all of her instruments that she needed for experiments and building her robots.
Kushina went over to her main computer and connected it to her watch as Alexa said "Kushin-sama are you going to be giving me another update?" to which Kushina nodded and said "yes Alexa I'll be making you the main AI for this planet as well since you are the AI I've updated the most and were the first one I made."
Alexa then said "Kushina-sama you'll be making me a central AI?" with excitement apparent in her robotic voice. Which just made Kushina smile since she planned to make Alexa her home planets AI since the beginning.
Kushina then said "Yes Alexa I plan to make you the Central AI of my home planet." To which Alexa was excited about but only a little due to Kushina not being able to make very developed emotion simulators.
Kushina then connected Alexa to the central computer so she could become the main AI of that she used on her home planet in this universe.
After Kushina finished transferring Alexa into the computer Kushina moved 5 super data chips from her watch into the computer and said "Alright Alexa I'm going to hook up a robot to your control so you can start setting up assembly lines."
Kushina then sat up from her chair and start walking out of the laboratory since she had connected Alexa to the main computer she wouldn't have to do too much for setting up her lab now and she can spend that time with her little brothers.