Purple River: Immortality Gene at the Start

[Purple River Fanfiction + System + Fixing Plot Holes and Regrets + Mastermind Behind the Scenes + Invincible Protagonist + Power Fantasy]

Lin Junyu transmigrates into the world of the novel Purple River, becoming the third son of the Empire of Light's eleventh emperor. The good news? He has landed in a fictional world he knows well. The bad news? He arrived too early, making his knowledge of the plot practically useless. Fortunately, he binds himself to the Life Choice System and receives the genes of an immortal right from the start.

As he walks through the ages, Lin Junyu discovers that this world is far more complicated than it seems. The demons and beastmen actually carry human genes? Why has King Zuo Jiaming lived for over three hundred years without aging or dying?

Many years later, Lin Junyu sits upon a golden throne beneath the stars, watching his three adopted sons lay waste to every foe.

"Hahaha! Those are my bravest sons! I'm just an old father, no different from any ordinary man."

Then, with a casual wave of his hand, Lin Xiuyu shatters an entire planet.