While Nagato used the Gedo Art of Rinne Tensei no Jutsu, his former red hair turned white, because of the massive amount of Chakra the Jutsu consumed. He knews that he will soon die, because of the use of this Jutsu. So with his final words he warns Naruto from a war, which is about to break out soon, and entrusts the young boy with the future of the Shinobi world.
After his last words the world seems to darken around him as he slowly closes his eyes and passes away. His soul leaves his body behind and beginns to transcend, leaving the material world behind.
But neither arrived his soul in heaven nor in hell. His soul floats outside an huge house with a lot of ornaments. The house is surrounded by a beautiful, lavish garden.(Garden and house are in the style of a traditional japanese house).Everything seemed quite familiar and remembered him of some houses of rich clans (e.g. Hyuga). But the house also seemed like its origin is from a completly different world, e.g. the materials used for this house and the flowers and trees of the garden are unlike anything Nagato has ever seen in his entire life. Eventhough he was no expert at this topic and generally didn't care much about such things in his last life, some part of his subconscious told him that this building is far from normal. The same part of his mind also told him that, whoever owns this house must be extremly powerful, even more powerful than Nagato was before his death. While Nagato was still alive and used the Pains, he declared himself to be a god. But this person must be a real god. While thinking about which deity would live in such a place and how powerful it would be, he subconsciously shivered.
After his initialy fear, he started wondering why he was here. But he also didn't want to knock on the door of the house, because he feared to upset it's owner. So he decided to wait until something happens. After he waited for quite a while, a sudden voice rang out of the house,"What are doing outside my house? Come in so we can talk properly. Don't be so shy." Eventhough the voice seemed to belong to an olderly man and the volume was quite low, the voice was filled with power and dignity, causing Nagato to shiver again.
As he approched the house like the voice told him, he was quite starteld at the fact that he could actually smell the flowers, eventhough he was dead and only a soul without a real nose. After a little thought he smilled over his own foolishness, because he had already realized that nothing here was normal. So of course these are special flowers, which have an scent even souls can smell. When he stepped on the wooden veranda, a sliding door opened, revealing a hallway with tatami flooring. The walls are made of a strange and sturdy, paperlike material, which is decorated by appealing paintings of animals and plants. After he stepped in the corridor the voice resounded again, "Just go straight forward until you reach the end. The door opens when you are in front of it"
Nagato did as he was instructed. While he approched the end of the hallway, the door, where he came in, closed and candels lit up. The warm light brightens the hallway and illuminates the paintings, which seem to come to life trough the movement of the flames. Especially the white tiger at the wall infront him. The flames of the candels resempled the eyes of this tiger. When he stood in front of the tiger, a door, on which the tiger was painted, opens and allows him to see the center of the house. It seemed to be a living room, because of some smal tables forming a circle around an old man. Each of the tables had a plate and an cup on it.
The old man had an smile on his face and an glowing, transparent body, which is emitting a strong and mysterious aura. Upon seeing the Elder, Nagato bows deeply in order to express his respect. Seeing his behavior, the old man laughs and cheerfully states "You seem to be well-behaved despite the early death of your parents and the reprehensible attitude of your Sensei. But you don't need to be so formal with me." When the Elder mentions Nagato's loved ones, a dark shadow lays down on Nagato's expressions. But the shadow vanishes as fast as it appeared. After all a lot of time has already passed since their death, so Nagato has already coped with their death and accepts their death, but he is still a little sad about it. As the Elder continues "I called you here today, because of a decission you have to make. You can choose if you want a normal afterlive or if you would execute a task for me in another world. But be carefull. This is no simple decission, it will affect your future depply."
"What task would that be", asked Nagato curiously. "Well it would be a task fitting for your mindset, because the task is to prevent a war and maintain the peace and balance of an entire world." That shocked Nagato and with a slightly trembling voice he asks, "Do you really think I could accomplish such a great task? The last time I tried to rescue the world, I failled miserably. I pursued a wrong way and couldn't reach my dreams. I could only entrust Naruto with this task." "You shouldn't belittle yourself",scolded him the old man, "Others decived you right from the start, making it extremly difficult for you to achieve your dream. Your failure wasn't because of you but rather because of people like Mardara, Obito and Danzo. Also I will make sure that you get this time enough help to achieve your aim." "If what you said is true, than I would gratefully accept your task. So I can make up for the bad deeds in my last life. Because equal if I was manipulated or not, I hurt many people." "Some would consider the Rinne Tensei enough to pay for your deeds. But I appreciate your way of thinking. So if you have any wish than feel free to ask me, if it's possible for me than I will grant your whish." "I feel greatly honored by your generous offer and would certianly accept this precious gift."