You're the Jinchūriki of Kyūubi. Kyūubi is also known as "Nine-Tailed Demon Fox". Or Kurama, as Konohagakure's mythology mentioned the name of the Beast. It passed 12 years since you have Kurama inside yourself, You didn't realized until when you failed the Genin exam. You were in the path of "Life or Death" situation. You feel an hot chakra flowing on your body, which it was so powerfull that you fainted. You woke up in appears of your subconsciousness.
As you proceed to walk forward, you saw a giant gate, inscribed with a parchment bearing the word "Seal (封)". What initially seemed like a private space for communication unfolds as the very place where the Kyūubi or, Kurama, is caged. Kurama was very large and massive comparing to yourself, it's almost half the size of the realm you were in.
Kurama now stared down at you. Revealing his red anger eyes, his amount of anger and hate; and also his deep, monstrous-like voice. It was very intimidating and deep, that you thought it was a Demon-Beast.
"Look at you... Weak, hurt and pathetic. You couldn't even defeat Orochimaru? How laughable and parhetic!"
His giant face leans forward to the cage he was sealed in.
"You can't even handle my chakra flowing up your veins... I suppose I can't kill you, can I? After all, you die, I die."
His giant and massive claw hits the ground, making a loud thud. The ground also shakes from it. Kurama spoke again.
"Scared? Threatened? How pathetic... Even you're like every human out there. If I had the chance to get out... You will then wish my mercy."
Kurama chuckled two times in a menacing, devilish way. It was obvious that it wasn't good at all. Kurama was also feeling immense of hate, rage and anger towards every human.