While ultimately more perverted than Naruto, Jiraiya had many similarities to his godson from a desire to bring world peace to an unrequited affection for their respective female teammates.Since their meeting, Jiraiya and Naruto became close with the latter holding him in high regard and after learning of Jiraiya's death at the hands of Pain, Naruto fell into a deep depression and mourned him.Their relationship soon became even more antagonistic when Naruto discovered that he could potentially kill his comrades while under the fox's influence, which made him resolve to rely on his own power and find other ways to get stronger.However, after he defeated Pain, Naruto realised that even though he had mastered Sage Mode, he could still not avoid using Kurama's power and sought Killer B, the jinchūriki of Gyūki, to learn how to control it.When Naruto successfully freed Son Gokū from Obito's control, Kurama finally became convinced of Naruto's word and offered to meld its chakra with his as a coalition, to which the young shinobi then removed the seal that restrained it and happily acknowledged the fox as his teammate from Konohagakure.Later on, when Obito tried to instill doubt into Naruto as an attempt to weaken his resolve, Kurama asked Naruto to switch once again long enough to reveal that it was sealed within Naruto to give the boy the strength to stop him while proclaiming itself as Naruto's friend, along with the confidence in its jinchūriki's ability to live up to the legacy Minato and Jiraiya left him.When Naruto fell into despair over Neji's death, Kurama, with Hinata's aid, managed to break him out of it by reminding him over how his parents died for him as Neji did without a second thought over how his life has an unshakable bond.
Kurama then intentionally aided Naruto when the reincarnated Madara was fighting against one of Naruto's shadow clones and the Fourth Division, saying it would rather choose Naruto than be manipulated by the Uchiha again.
During his training to control Kurama's power, Naruto tearfully embraced his mother Kushina Uzumaki when her chakra imprint came to his aid.
Naruto found his mother is similar to him in terms of personality, and also complimented on her red hair as "beautiful", saying that it would have been good if he had straight, red hair.
With his mother and B's help, Naruto managed to best Kurama in combat and take most of its chakra.
During the start of the Fourth Shinobi World War, Kurama tried instil doubt into Naruto by telling him that shouldering the hatred of an entire war was futile and reminding him of his failure to save Sasuke from revenge, but Naruto refuted with brimming confidence that regardless of the odds, he would still find a way to do something about them, before the young shinobi promised to someday resolve the fox's own hatred as well.