Pain is the main villian in Naruto and he is the leader of the Akatsuki. He wants to rule the world and he'll destroy anyone who stands in his way. He extracts Tailed Beasts and on the fanfics wiki he uses their power to create a new Jutsu. He cloned some of the Tailed Beasts then put them back into the hosts and even cone the Kyuubi inside of Naruto Uzumaki. Pain doesn't show any mercy but Nagato does. Pain hates Naruto and wants to destroy the Leaf Village. Pain's partner in the Akatsuki is the one called Konan. Naruto then uses sage mode to defeat Pain with his other 5. Yiharo is the master of the Pains, he's the leader because Yiharo is known as Nagoto's best friend which died but with Nagoto's Rinnegan, he is used to help him.