"Haru what are you planning for the project Minato-sensei gave you?" ask Kakashi

"Hmm... I have many ideas about that but I have no way to incorporate them, I need some information on seals of larger-scale," said Haru

"Oh how about asking Kushina-sensei about it?"

"Oh right, okay then I'll go to her house later"

"Okay I will go with you" said Kakashi

"Jeez you are so clingy" tease Haru

"Why? You don't want me to? We don't have much time together for the following days because I will be joining the ANBU" said Kakashi pouting

"Hahaha nope I enjoyed it, and yes you are right about that but you needed that because it will help you in the long run in your career as shinobi and I will always support you no matter what" said Haru while pinching Kakashi's cheeks

"Hehe I know, it is the same for me, I will support you whatever you do"

Haru nodded and said "Let's eat" 

"Okay"

Then they both went to Ichiraku ramen to eat.

At night Haru and Kakashi went to Kushina and Minato's house…

*Knock Knock

Minato then opened the door and he saw Haru and Kakashi

"Oh Haru and Kakashi come in, what brings you here?"

"Hehe sorry for the intrusion nii-san" 

"Haha not at all, did the two of you eat already? I made some dinner" said Minato

"Wow Minato-nii I did not know that you can cook"

"Haha just simple dishes come let's eat" 

"Okay then we're barging in" 

 

During dinner…

"So Haru what brings you two here?" ask Kushina

"Oh right nee-san, I needed you help for the project Minato-nii gave me"

"Oh the barrier? Why? What do you want my help with?"

"Yup, well I have many ideas on how the barrier would function but have no clue on where to start" 

"Oh and what functions are you planning to install Haru" ask Minato

"Well, first is the detection function Minato-nii said, then 2nd is the protection function, in which I plan to make it sturdy enough to handle tailed beast bomb of the kyubii or higher.

The 3rd would be the identification function in which the barrier would record all the registered shinobis chakra. It functions just like my storage ring, in which the barrier would only let in the shinobi's whose chakra is registered, if an unregistered ninja would go in, their chakra points will be sealed and they can't use any jutsus within the village and it will automatically mark them so that we can easily find them and apprehend them. 

For the ninja's visiting the village however, we can just give tokens so that they can use their chakra within the village however they can only do that with the permission of the hokage or me.

As for the normal civilians, the detection function is enough for them; the 4th function that I could think of is that, if a very powerful attack would come to Konoha, it will use nii-sans jutsu the Hiraishin jutsu to teleport the attack to somewhere faraway. For these to work however I plan to use Natural energy as a battery for the barrier" explained Haru

"Wow Haru those are great ideas you have, but yeah it will be really hard" said Minato

"Hmm… if I remember correctly there is that kind of barrier back in the Uzushiogakure" said Kushina sadly

"Oh right why did I not thought of that" said Haru

"Huh? What do you mean kid?" ask Kushina

"Kushina-nee is there something like a hidden cave in the Uzumaki village? Like some sort of storage?"

"Well I did not know if there is something, since I was a kid when I was sent here, why don't you ask your mother?"

"Oh right, I'll ask her later"

"Minato-nii, if ever there is really storage in Uzushiogakure, I will go there to investigate" said Haru

"Hmm… Okay then" said Minato

Haru and Kakashi then bade farewell to the two and went home.

"Looks like I need to ask my mom and go to the village myself"

"I can accompany you to the village Haru"

"No, you have your training right?"

"I will just tell sensei that I will join after your visit in the former village"

"Hmm… Okay then, I'll call you tomorrow so we can depart together"

"Okay"

Haru then went home to find his mother.

"Mom, dad I'm home"

"Oh Haru welcome home, have you ate dinner?"

"Yes we ate in Minato-nii's house, oh right mom, I have a question to ask you" said Haru

"What is it, Haru?"

"Is there a hidden storage in Uzushiogakure that stores the clan's seals?"

Rin was surprise when she heard Haru's words, she then ask 

"Why are you asking that?"

"Well…" then Haru told her about the project Minato gave him and his ideas 

"Hmm… I see, well there is a storage use by the clan, but only Uzumaki bloodline can enter it, so it is no problem for you but I don't know where it is hidden because only the clan head can go there."

"I see, thank you mom, I will check it tomorrow then"

"Okay just be careful, I know there should be multiple traps laid there"

"Yup I know don't worry"

 

The next morning…

"Let's go Kakashi"

"Okay"

The two went out of Konoha and journeyed to the former Uzushiogakure, when they arrive there, it is already noon. When Haru looks around, he saw broken stones with the whirlpool symbol and broken buildings around. 

Haru then expanded his perception to look for the storage, and after a while he saw a hidden entrance in the north. 

Haru and Kakashi arrive in a stone wall with the whirlpool symbol. Haru then touches the symbol and after a while concluded that it is a hidden entrance. He then looks around for some switch but found nothing.

"Looks like there is nothing like a switch around here" said Haru

"Hmm… your mother said only an Uzumaki can enter it right? Maybe it needed your blood or something" said Kakashi

"Oh right, Kakashi you're a genius" said Haru

Haru then took out a kunai in his space ring and cut his palm, he smeared his blood on the symbol on the wall, after that he healed his palm. The wall symbol then shined some light and a sound of the mechanism is heard. The stone wall then moves backwards and stairs could be seen underneath.

"Well looks like you are correct, Kakashi" 

Kakashi nodded "Let's go"

"Okay"

The two then proceeded downstairs while expanding their perception to look out for traps. After a while, they reach the bottom of the stairs, what greeted them is a narrow pathway, Haru then stretches out his perception and noted that they are traps hidden

"Kakashi, follow my lead, they are trap hidden in the pathway" said Haru

"Okay"

Haru then proceeded to walk carefully along the pathway, and looking out for traps. After a while of walking they reach a door, this door looks very sturdy, there is also a whirlpool symbol at the center of the door. Haru then cuts his palm again and smeared his blood on the symbol. The door trembled slightly and it slowly opened. What greeted the two is a big room full of scrolls; it is arrange like a library, there is also a big scroll in the center.

Haru then took one scroll and read it; after he read the scroll he concluded that these are the sealing techniques of the Uzumaki clan.

"Looks like mother is right, the clan did have a secret storage to place all the secret sealing techniques of the clan"

"Yeah and these techniques are not known" said Kakashi while reading another scroll

"Okay then we will take everything here and go back to Konoha for research" said Haru

"Hmm okay"

Haru and Kakashi then summons shadow clones to help them store the scrolls. Haru then proceeded to the center where the big scroll is located. Haru reaches his hands on the scroll and read it, after a while you could see a shock expression on his face; Kakashi went to him and also saw the scrolls information.

"So these scrolls contain the secret and forbidden sealing technique of the clan, and these techniques are really powerful; it can even stop space and time. No wonder the major villages are afraid and destroyed them. Tsk! It's a good thing we came here" said Haru

"Yeah, we should keep this information as a secret Haru"

"Yup, and it is also a good luck to us since I read about the information on how to make my ideal barrier."

Haru then places the scroll in his special ring, together with all the scrolls in the room. After a while, they check every nook and cranny of the place and found out that there is no other secret room. Haru then thought for a while and said

"We need to destroy this place, so no one will found out about this" 

"Hmm… Okay then I'll place paper bombs over the place" said Kakashi

"Okay"

Kakashi then filled the place with paper bombs after a while they teleported outside and Kakashi made hand signs [Release]

And sounds of explosion were heard in the place, Haru then grabs Kakashi and teleported back home.