New World with Four Husbands - Chapter 90: Alhai’s quest

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.

Damien never asked for this life.Confined to a hospital bed, chained by a body that betrayed him, he spent his days battling the cruel joke that was fate. But when a single video game shattered his last shred of patience, he found himself facing something even worse—his own reflection, cast into a story that should have never been his.“Fucking NTR game!” He said as he threw the console.In the game, the player was nothing but a tragic figure. A weak, spineless fool, doomed to be discarded. A character whose sole purpose was to be broken.But was that really all he was?Thrown into a world that scorned him, Damien refuses to play by the script. If fate had already written his downfall, then he would carve his own path—one of defiance, of rage, of survival.Watch as Damien, a man who once had nothing left to lose, fights to take control of a story that was never meant to be his.Because in a world that demands he stay weak—he will either shatter expectations… or burn everything down with him.

Travel through Naruto and become the son of an ordinary civilian Chunin.

In this life-like world,

He obtained the golden finger to speed up the practice of ninjutsu,

Let ninjutsu itself produce a magical change from decay.

The knife cuts the jade, and the water bomb breaks Suzuo.

- Description from novelbuddy