Naruto

Sora attacked Naruto, who was separated from his team and stumbled upon one of the four hidden tombs they came to protect. When Sora was about to kill Naruto, Chiriku stopped him. After Chiriku stopped Sora and Naruto's battle and Sora gave information about the one of the four hidden tombs was stolen, he and Naruto started to argue each other, but were prevented from fighting by Chiriku and Yamato. After the confusion, they went to the Fire Temple.
Naruto found Sora sparring with other monks, and it seemed to him that Sora was despised, so he tried to befriend him, but was rejected. Sora, Naruto, and the rest of Team Yamato were soon sent to investigate a number of grave robbings of former members of the Twelve Guardian Ninja. Not interested in helping the team, Sora went off alone and found the enemy leader, Furido. When he discovered that he was their target, he questioned Furido about this, but started to grow angry when he received no reply. Furido taunted Sora until Sora unleashed his true powers, before informing him that he was planning to use the corpses to save the Land of Fire. After an explosion, Sora woke up only to find out that Furido had vanished, only leaving him a clue that he knew his father and that Sora resembled him.
Sora was assigned to go to Konoha with Team Yamato to replace an injured Sai. Naruto tried to show Sora around Konoha, but Sora went his own way, insulting those he came across. He later met Asuma, a man who had known his father and who offered to help him and Naruto with wind nature transformation training. Although he proved skilled with the Chakra Blades, he learned that Asuma was the one who had killed his father, something that caused him great distress.

Naruto in his three-tailed form tries to hold down Sora in his four-tailed form.

Later on, Sora tried to look for Asuma, and followed him to Danzō's interrogation. There he found out that Homura Mitokado and Koharu Utatane disliked Sora, and considered him unwelcome in the village, planning to kill him. Before Tsunade could make her decision on what to do with Sora, however, he was discovered and captured by ANBU members. Enraged that he was hated even in Konoha, Sora attacked Asuma, his arm once again assuming a demonic form. Sora fled and sought out Furido, who told him that the only way to avenge his father was to kill Tsunade. When he failed during the initial attempt, he returned to Furido, who revealed himself as Kazuma and used the Five Elements Unseal to release all of the Nine-Tails' power sealed within Sora.
Before Sora could do any serious damage, however, he was confronted by Naruto. After recovering in the hospital, Sora bid farewell to Naruto and Team Yamato, asking them to tell Asuma he apologised for his actions before leaving to travel the world.