Boruto Database: Kurama (Nine Tails)

One of the creatures called "Biju" or "Tailed Beasts", who hold immeasurable chakra.

People call this beast "Nine Tails" for the number of tails he has, but his real name is "Kurama".

He was sealed inside Naruto moments after the boy's birth. After some twists and turns they eventually become true comrades. But in their battle against Isshiki Otsutsuki, Kurama helps Naruto activate Baryon Mode at the cost of his life, and passes away.

However, it is said that the death of a Tailed Beast is not forever, and that they will revive as the ages pass...

It would normally take up to several hundreds or even thousands of years until one is reborn, but this time, Kurama revives within Himawari at a speed that astonishes even himself.

There may be a few factors that could have contributed to this occurrence, but there is no clear cause for it at the moment.