After a failed attempt on Naruto's life by a mob of drunk villagers Naruto developed Nagato a second stronger and smarter personality who seems to be infatuated with Naruto's shy indigo haired friend.
Naruto Had to suffer his entire life in konoha as he was the older of the 3 children but wads neglected by his family for his younger siblings who had the kyuubi chakra while he has the soul. He was alone, abuse, hated and even ignore by everyone as he can't take it anymore as in the underworld a dark king who want someone to be the next successor to his throne but he can't find anyone who has the potential to ruled until he sense a hatred from Naruto as he was the one who can be the next king.
He won't be alone he has queens to rule with him.