Chronicles of Primordial Wars - Chapter 809 - Cold Star

Reborn in the world of Naruto as the Nine Tails, he finds himself sealed within Uzumaki Kushina. No longer just a mindless beast, he possesses his own will, intelligence, and the power to change the fate of the tailed beasts.Madara : I never thought that my Rinnegan would be crushed by Nine Tails.Hashirama: Times have changed. I once controlled the Nine Tails, and now the Nine Tails controls me.Uchiha Mikoto: Kushina, I didn’t expect you to have something this powerful sealed inside you.Uzumaki Kushina: Each of the Nine Tails' tails gives me a different feeling.At this moment, the Nine Tails stood tall, representing all the tailed beasts.“Tailed beasts will never be slaves!”

Xiao Yu, who was a student from modern Earth, accidentally transports to another world and becomes the lord of a territory. Facing an unfavorable situation, he vows to take back his family business, build his new territory, kill all of those who covet his wealth, and dominate the world!

- Description from Novelupdates

Seojin transmigrated into the novel named ‘777: The Crowned Sovereign’ as Seven, a side character.Here, he was the seventh child of the seventh archduke of the seventh kingdom of the seventh continent.On Earth, he was raised by his seventh stepfather and the child of the seventh ex-wife of the seventh mayor. He even had his seventh maid quit the job.He was also the seventh reader of the novel he transmigrated into.[Welcome, Seventh Reader! Your loyalty has been awarded.]With this many sevens, will he curse it as an unlucky number or… praise it seventy seven times?…Note: The author is a complete newbie and this is the seventh draft. Please don't expect this as such a grand story.Thanks. Merci. Danke. Bedankt. Terima kasih. Gracias. Salamat.Congrats! You just learned how to say ‘thanks’ in seven languages! ;P

I fell into a game world out of nowhere with an instant kill skill.
And then somehow, I became a bigshot.