Kurama Biography
Kurama spent centuries building a reputation as one of the most terrifying creatures in the ninja world, only to end up as Naruto's extremely grumpy emotional support fox.
At first, his hobbies included destroying villages, intimidating everyone in sight, and generally being the embodiment of "anger management issues." Then Naruto came along and somehow turned the giant chakra monster into a reluctant teammate. Now Kurama spends most of his time providing unlimited power while acting like he's definitely not emotionally invested in anyone.