MTL - I Am Immortal - Chapter 144 teacher for the king

A college student, accidentally reborn into the world of Naruto, becomes a member of Uchiha who is destined to be exterminated.

In this cruel ninja world, in the face of endless wars and exclusion from the village, what will Uchiha Qing do?

PS: Later in the book, the protagonist will develop a system of immortal cultivation. Cultivating Immortals in the Ninja World, have you seen it?

- Description from novelbuddy

Alex was an ordinary teenager—until the day he discovered his ability to drain energy from the dead. With powers rooted in death itself, Alex hides his necromancy behind a normal life, secretly entering deadly portals to fight monsters and earn money. But beneath the surface, a darker truth lingers—his parents's death and his powers are linkedAs he harnesses his necromantic abilities, draining the fallen to grow stronger, the weight of his power begins to take its toll—and the line between the living and the dead starts to blur.With enemies closing in and betrayal around every corner, Alex must master his growing abilities before they consume him—or worse, before the forces hunting him claim everything he has left.When death becomes your greatest weapon, how long can you survive before it turns against you?---

“Kat, you have a tail” said Lily

“Look, Lily, it really isn’t that big of a concern” said Kat

“You.Have.A.TAIL KAT” said Lily “How is this not a concern to you?”

“Well, the dream I had was a bit weird as well, but if I’m honest, I’m mainly worried about the floating text that’s on fire” said Kat

“THE What?” said Lily

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Join Kat on her dimension hopping adventures as she fullfills her demonic duty and answers the call of the summoner. Each week Kat will get involved with new strange situations and oppurtunites that await her. During the week she'll have her best friend Lily, and perhaps a little help from Sylvie to figure out what's she supposed to do with her life now that she's becoming a demon.

”When I tell you to proceed with Plan A, you can’t just ignore it and go with Plan B,” said the king.

”Sure”, she replied; she’ll just go to Plan C then! No biggie.

”If you were told to go eastwards, you can’t just ignore me and go in the opposite way,” the king added on.

”Yes,” she said while nodding. If she can’t go in the opposite way, North and south work fine too.

”You are NOT allowed to have affair with any other men!” the king then emphasized.

”Sure”. She replied. She never has to be the one having affair with the others. Others have it with her.

- Description from Novelupdates