
Gyūki and the tailed beasts first came into being in the waning days of Hagoromo Ōtsutsuki, who used his Creation of All Things Technique to divide the Ten-Tails' chakra into nine separate bodies and giving each a name. Some time after being created, the Sage explained to the young tailed beasts that a link existed between them despite their separation. He also foretold of a day when they would be brought together again - though not as they were - and that at that time someone would emerge to show them what true power is.[2][3] In the anime, before his death, Hagoromo sent Gyūki to live in a temple built for the purpose of protecting it in a region surrounding a range of tall mountains between the clouds, that would later become part of the Land of Lightning.[4]