As Kushina was Walking towards the door She stopped and thought about it. after thinking for a little while Kushina decided to help with building her lab instead of leaving it completely to her shadow clones.
Kushina then walked back to help with making her lab. after reentering her lab Kushina started the process of making an assembly line for some high tech robots that could walk and complete complex tasks.
After about 3 hours Kushina finished making the assembly line as it started running and building robots for Alexa to use and control. When Kushina finished making the robot assembly line she was sitting on a chair in the command room.
As Kushina was sitting down she accidentally pressed on her breasts a bit which caused her to slightly moan. After feeling her body start heating up Kushina took out some 'toys' from her void space she had made before.
Kushina then started to 'play' with her toys. and she didn't stop for 4 days due to being frustrated for almost 20 years of not 'Playing' with her 'Toys'.
After finishing with her 'playing' Kushina put her 'toys' away and started cleaning up the fluids that were all over the floor. Kushina then decided to bring her observation of the entirety of Konaha to her conscious mind.
After observing Naruto and Sasuke for a while Kushina decided that she need to understand chakra more as well as perfect the impure world reincarnation Jutsu, Shadow clone Jutsu.
Kushina also realized that she needed to learn more Jutsus as well and one that she is putting at the top of the list is Weight rock Jutsu as well as the flying thunder god Jutsu.
Kushina then made another 100 clones that had 10 times the amount of Chakra Kurama had and had 20 research Chakra, 20 research and perfect the impure world reincarnation technique, 20 research the shadow clone Jutsu and find and increase its limits, 20 research master and perfect the weight rock Jutsu, and finally 20 to learn perfect and improve the flying thunder god Jutsu.
After doing all of that Kushina decided she was ready to meet her little brothers and she couldn't procrastinate and any longer. Kushina then started walking out of lab for real this time.
Kushina then reached the door of her lab and opened it. After walking outside of her lab Kushina started Hyperventilating a little and said to herself "Kushina it's not gonna be that bad your just reuniting with your little brothers after 20 years. but was only 4 years for them it's fine actually let's deage myself with a transformation so they can more easily figure out who I am and not see a 20 year old."
Kushina then used a transformation Jutsu to Deage her appearance so she would look like a 12 year old. After deaging her appearance Kushina started walking towards where she sensed Naruto was first before meeting with Sasuke so she could prolong meeting her twin for a little bit longer.
As Kushina walked across the Hokage statue head Kushina got to the edge and just walked off falling to the ground. When Kushina reached the ground she landed lightly surprisingly with little dust flying into the air.
When Kushina looked back at the statue she saw that it was covered in paint with silly drawings all over them. Kushina decided to walk over to the Ninja academy since she could meet her little brothers there.
Kushina passed a bunch of people on her way and saw a bunch of Anbu take notice of her and report her presence to the Hokage. As Kushina was walking towards the Academy some Anbu surrounded her which she just ignored.
Kushina soon reached the Academy and looked down at her clothes. She realized she was still wearing just her tank top and short shorts and blushed slightly and decided to make her clothes cover herself a bit more.
Kushina then manipulated her clothes to extend and made her shorts go to her knees and her shirt to the top of her shorts so she didn't look indecent in front of her little brothers.
Kushina then turned around and saw the dozen or two Anbu that had been trying to attack her and said "hey you clowns want to tell me what your doing here? I mean your not even strong enough to scratch my skin let alone attack me?"
The Anbu were just panting on the ground exhausted with one saying "do you have eyes on the back of your head you didn't even move to attack us yet you blocked all our attacks with a single tail what kind of monster are you."
Kushina just looked slightly annoyed and said "I'm no monster and no I dont have eyes on the back of my head you guys are just way to slow to pose any kind of threat to me so why should I attack you. theres no point when I can littlerly kill you without even moving."
Kushina then walked inside the academy so she could meet with her little brothers.
Kushina soon arrived in front of the door to the classroom that held both Naruto and Sasuke and Kushina could feel her heartrate increase. Kushina then opened the doors and Walked in on what seemed to be a test going going with Sasuke looking out the window and naruto who was currently performing a sexy Jutsu.
Kushina realizing that Neither sasuke nor naruto has seen her in 4 years and they hadn't seen her even though she had walked into class granted she tends to do things really stealthily like when she walks she doesn't make a sound and she starts suppressing her presence when she around enters a crowd.
Kushina realized she instinctively started suppressing her presence to the max when she entered the room which was why no one realized she had entered since even a bakugan user probably wouldn't since what she was doing was making her presence so thin people overlooked her.
Kushina then looked around and decided to sit next to Sasuke while Naruto was completely his test. As Kushina sat down She started undoing her stealth technique so others could notice her presence.
As she finally was able to undo her stealth Kushina started unconsciously wrapping Sasuke in her tails. Sasuke started to dose off not realizing Kushina was next to him and to busy brooding about his revenge on Itachi and finding Kushina who had disappeared on the day of the Uchiha massacre.
As Kushina was Sitting next to Sasuke her stealth technique was once again automatically activated by her Ultra instinct as Kushina pretty much disappeared from everyone's mind but Sasuke's who was brooding over how to find her.
Kushina started dozing off as she wrapped all her tails around Sasuke and then started hugging him as Sasuke also fell asleep being embraced by Kushina. Kushina only half fell asleep so she could watch over Sasuke as he slept.
after about a minute of Kushina stroking Sasukes head as he had fallen asleep after being embraced by Kushina's tails and arms Naruto came over to sit next to Sasuke only to see Kushina completely ignoring her Stealth Technique.
Naruto then said "Kushina?" As Kushina Just waved to Naruto Which caused Naruto to launch himself at her and ram into her as he said "Kushina-chan when did you get here?" Kushina just shrugged and said "A little while ago."
Naruto then looked at sasuke who had fallen asleep and said "haha Sasuke fell asleep." to which Kushina just shrugged and said "it's not my fault my tails are so fluffy." at this point Kushina stopped feeling anxious and her body deactivated her stealth technique as everyone started realizing that Kushina was sitting next Sasuke.
Kushina patted the seat next to her and "come sit." while petting Sasuke's head. soon the girls in the class ran over and one of them said "Hey who do you think you are petting Sasuke like that?" but Kushina just Ignored them and lightly closed her eyes.
One of the Girls said "Hey are you Ignoring us." As Kushina just Ignored her. One of the girls stepped forward with a tiny amount of killing intent which normally wouldn't have bothered Kushina but she was feeling slightly stressed earlier and was Currently hugging a sleepy Sasuke
Kushina then said "Take another step and I will kill you." with a cold tone while making sure to restrain all of her killing intent so she wouldn't scare Narto and wake up Sasuke.
Kushina then opened her eyes while activating her sharingan and said "I'm Sasuke's Twin and none of you Kunoichi have even the minimal required amount of strength to even consider being my twins mate." As she deactivated her Sharingan and closed her eyes.
Her words unsettled a most of the Kunoichi besides Ino and Sakura who seemed to have a fire blazing in there eyes which just made Kushina smirk. Naruto was at this point confused so Kushina said "Naruto you dont have to worry about what I said too much wait till your older." Naruto just happy Kushina was back decided to listen to her as he kept smiling a smile that made Kushina very happy to see.
Kushina still ignoring the Kunoichi's started thinking about Narutos and Sasuke's love life. Kushina then looked at Hinata and thought 'hmm yeah she can definitely become Naruto's mate but she needs to train so my niece's or nephew's can get a good starting point."
Iruka then finally noticed Kushina's presence in the room and walked over. When Iruka made his way over he noticed the similarities in Kushinas appearance to Sasuke. He then said "What's a genin like you doing in class?" noticing the headband Kushina had put around her neck.
Kushina just shrugged and said "well I came back from my trip and wanted to come spend time with my twin." Iruka then realized and decided that since he was doing final exams today and Kushina didn't seem to be doing any harm he decided he didn't get paid enough to try to capture a S-rank missing-nin.
Kushina realizing that the final Exams were today decided to wake up Sasuke even though he looked really comfortable in her tails. So Kushina decided to wake Sasuke up.
Kushina then turned to Naruto and said "can you please wake Sasuke up for me." Naruto Just shrugged and walked over to Sasuke and started Shaking him which made Kushina cringe slightly.
after Naruto got Sasuke to start waking up he said to Kushina "Hey Kushina-chan where were you." Which Just caused Kushina to shrug and say "oh I was here and there mostly training and on a journey of self discovery." As Sasuke realized he was wrapped in Kushinas tails and looked at Kushina with his mouth open.
Sasuke then said "Onee-chan?" Kushina then felt her nose bleed slightly from Sasuke calling her Onee-chan as She said "Yes Sasuke. but no time for that you need to participate in graduation Exams." Sasuke confused said "but your back Onee-chan, when did you get back, how did you get back, where did you go?"
Kushina at this point almost on the verge of tears because of how happy her little brother was making her by both being worried about her and because he called her Onee-chan again she said "Sasuke I love you." with a giant smile on her face.
(A/N MC is talking family love not sexual love for you horny perverts out there.)
Sasuke then turned to Kushina and said "I love you to too Onee-chan." at this point Kushina was smiling from ear to ear as she said "well I want to see how far along your and Naruto's training in the academy."
Sasuke then said "Um Onee-chan we dont have Exams till tomorrow." Kushina just nodded then said "yup and you are going to fight me so I know at what level you guys are at."
Naruto then said "hey we are not gonna fight you it wont be fair." Kushina just looked at naruto and made a shadow clone and said to it "go get that book." Kushinas shadow clone then nodded and ran off.
Kushina then turned to Naruto and Sasuke and said "well if you guys can even put a scratch on me while I read a book I'll tell you why everyone's been such a d*ck to him and I'll tell Sasuke where Onii-chan is."