Naruto wasn't in a hurry. He took his time and explored the whole island. This is his island now. The extremely high-level fuinjutsu is changed by him. Now only his subordinates and any member of the Uzumaki clan can enter and exit. It is a big island. Before destruction, the Uzumaki clan was quite big in number, now only quite a handful remain.
Naruto thought, 'Jane is there any item which can give me full control over this island.'
(There is a Land ownership token that can be sufficient to control this island.)
He bought the token and put his blood on it. The blood got absorbed by it. He put the token in the middle of the village. It went inside the ground. After a few seconds, energy spread throughout the island.
[Ding!!! You become the owner of Whirlpool Island. ]
[Hidden achievement: Own a huge island]
{Rewards: Shop points= 10,000, Elite reconstruction card ]
Naruto said, "Use the reconstruction card on Whirlpool Island, Jane."
Another energy spread throughout the island. The buildings are reconstructed automatically. The burn marks and signs of destruction were erased from the land of whirlpools.
Naruto looked around and said, "It's beautiful. I never knew it was such a beautiful place."
(Master Naruto this beautiful island belongs to you now. )
Naruto said, "Let's find a nice place to bring our big guns."
Naruto searched the newly reconstructed island and found the best place for summoning his underground guild castle.
Naruto put his hand on the ground and said, "Grand summoning: Tomb of nazarick."
With a huge magic circle 'Tomb of nazarick' appeared in its full glory. He liked it and walked towards the gate of Nazarick.
Suddenly a demon appeared nearby and said, "My lord you have returned. I am so happy. Let me lead the way for you."
Naruto said, "Demiurge, I am happy to see my most intelligent servant is here to greet me. I have a lot to discuss with you about our future, and our standing in this world."
Demiurge looked very happy and said, "Your servant lives only to obey you. If you tell me to massacre this whole world. My wrath will upon this world. If you ask for my life, I will gladly give it without any second thought."
Naruto said, "No I don't want your life. Just serve me with all your might that is enough for me. Now lead the way."
Demiurge started to lead the way and asked about the history of this place and Naruto told him about his mother and the situation about Uzushiogakure. It is easy to explain to one person rather than everyone. Naruto explained what he planned for every ninja nation that went against his motherland.
They directly went to the throne room. Naruto sat on the throne of the king of kings.
A succubus near the throne said, "My lord you have returned, It shall mark a historical moment in the Tomb of Nazarick."
Naruto said, "It will Albedo. Call all the floor guardians, except the 4th floor guardian. Demiurge will stay here to keep me company. We have many things to discuss."
Albedo said seriously, "Yes my lord." She left immediately.
Naruto looked at Demiurge and said, "I made a few shadow demons who run around as spies. So I wanted to give you their command. As I am busy being a small innocent child. I cannot afford to reveal any clue or relation with any outside force. They will suspect me which is not good for us."
Demiurge responded seriously, "I will command them in your lead, my lord."
Naruto said, "Be aware of a plant creature named Zetsu. He manipulated almost everyone in this world at some point in time and still playing his game."
Naruto extends his hand and projects an image of Zetsu to him. He explained the history of the Ninja world, Samurai origin, Damiyo, and their role, and sage of six paths and his legend.
Naruto said to Demiurge, "It is a pain to explain everything to everyone so please explain everyone on my behalf. And for your information, I already have a ninja servant named Yugao. I will bring her to Nazarick in my free time." He shows another image of a woman in ninja attire to Demiurge through projection.
Demiurge said, "Anyone who works for you loyally is a friend and ally of mine. So rest assured my lord."
All the floor guardians entered the throne room and knelt in front of him. They swore their loyalty towards him one after another.
Naruto after hearing them for some time replied, "It made me so happy that all of you, swore your loyalty towards me. Now my powers are sealed for the time being because this body is not strong enough to handle it. Some of it will unsealed when I graduate from Ninja Academy. So for the time being I am dependent on you guys for any work."
Shalltear replied, "Lord Naruto, give the orders and we will do everything in our power to achieve it for you."
Naruto said, "Be patient and wait for some time. It's not the right time to reveal ourselves. It's time for only information gathering. This whole island belongs to me now. All the other information will be given to you by Demiurge. I already explained to him in detail."
Demiurge said with a prideful voice, "It's my responsibility to explain everything to all of you. Lord Naruto used a lot of magic to reconstruct the island. Then he summoned us. It's tiring for him."
Albedo said in a worried tone, "I am so sorry lord Naruto, you were so tired and I didn't even realize it."
Naruto said to them, "It is fine, you all have to discuss a lot of things. All of you will listen to the information which I gave to Demiurge. By the time I go to the other floors. Greater teleportation."
After Naruto left they discussed every information given to them. Naruto appears in front of Pleiades and Sebastian.
Naruto said, "Pleiades and Sebastian lead me to the Cafeteria."
Sebas immediately bowed and said, "Yes my lord."
They were so happy to lead their lord. On the way, he saw many maids who bowed their heads and greeted him. In response, he waved his hand and said hello to them.
After reaching Cafeteria they took his order and prepared food for him immediately. He felt satisfied with the food and praised it.
Sebas asked, "Lord did the food's taste satisfy your hunger?"
Naruto answered, "Yes Sebas, it is quite good for me. Now I will have to go back. Tomorrow I have a class and I have to study too. Students life isn't a joke. I will come back when I have free time or summon anyone of you to me."
Sebas bowed and said, "As your wish Lord Naruto."
Naruto said, "Please inform about my departure to the floor guardians and Albedo. Tell them to put some guards on watchtowers for extra security on this island. Gate."
Naruto walked past the black hole-type gate and now he was in his apartment. He dispelled his clone and after that, he went to his sleep. He is really tired after all. It's not every day an 11-year-old boy, searches a ruin. Reconstruct it to its former glory. And summon an out worldly insane guild with powerful followers. Naruto slept like a baby for the rest of the night.