Nagato (長門, Nagato) was a shinobi of Amegakure and descendant of the Uzumaki clan. Forming Akatsuki alongside his friends (and fellow war orphans) Yahiko and Konan, Nagato dreamed of bringing peace to the violent shinobi world. However, following Yahiko’s death, Nagato adopted the alias of Pain (ペイン, Pein) and, along with Konan, began leading a new Akatsuki — one that would force the world into peace using any means necessary.

Nagato lived with his parents: Fusō and Ise on the outskirts of Amegakure. When he was very young, Madara Uchiha secretly transplanted his Rinnegan into Nagato without his or his parents’ knowledge. Sometime later, during the Second Shinobi World War, Nagato and his parents took shelter in their home to avoid the fighting going on around them. One day, two Konoha shinobi broke into their home looking for food and Nagato and his parents tried to sneak out unnoticed. When they were discovered, his parents attacked the shinobi so that Nagato could escape. The Konoha ninja killed his parents in self-defence and, upon realising they were only civilians, tried apologising to Nagato. Overcome with grief, Nagato used Madara’s Rinnegan for the first time to kill them and avenge his parents.