Ninetails
The Ninetails is a legendary creature that is said to have nine tails. It is a powerful being that is often associated with magic and mischief. In the anime "The Isekai Returnee is Too OP for the Modern World," the Ninetails is a ruthless and sadistic deity who uses its magic to torment humans. The Ninetails is a formidable opponent, but the protagonist of the anime is able to defeat it with the help of his friends.