MTL - 4.6 Billion Year Symphony of Evolution - v9 Chapter 41 end?

It’s a story about a man who got transported into a novel and possessed a slum boy. He met a noble girl and served her as a butler for 13 Years. Now the girl has already fallen from her noble life and lives in an abandoned mansion with paralyzed legs. Why did she become like that? Of course because she is the villainess in the novel.

Ian Night’s life was a joke—until it wasn’t.Betrayed, discarded, and left with nothing, he welcomed death when it came. But fate had other plans.Reborn in chains, Ian awakens as a slave in a world where power is dictated by bloodlines and magic.While others wield fire and lightning, he is given dominion over something far more absolute: Death.With every slain foe, every stolen soul, and every corpse bound to his will, Ian will carve his way from servitude to supremacy.He will rise from the dirt. He will shatter his chains. And those who once cast him aside will learn what it means to fear the dead.[Ability Unlocked: Soulbind – Bind the fallen to your will.][Absorb strength of fallen soul?][New Trait Acquired: Gravewalker – The dead whisper, and you listen.]Kingdoms will tremble.The weak will kneel.And Ian Night will never be a failure again.Or, like most in this cursed world, he’ll die trying.

After choking to death on a watermelon, Rong Jiahui thought that she would enter the netherworld and be reincarnated.

But when she opened her eyes, she discovered, to her very horror, that she had returned twelve years into the past…

Looking at the beautiful and awkward “little brother” that would be conferred the title of Marshal in the future for outstanding military service, she almost let out a snort of laughter.

She firmly decided to hug the thigh of this little brother, and climb to the top of her life!

The plan was beautiful, but it had just one problem.

Why had this little brother… suddenly turned into…

A little sister…

- Description from Novelupdates

The hero who was killed by the demon king ended up reincarnated as the son of the one who killed him! Thus began the life of the hero who donned in the mask of the ideal demon prince to topple his own kingdom while doing his best to prevent anyone from discovering his identity―― But to do that and blend into the demon tribe society, he had to kill his former comrades. Nevertheless, to become stronger, to save humanity, he had to walk through all kinds of paths of carnage! This is the tale of the demon race’s fake prince destroying his own kingdom.

O Hero, Trample Those Who You Should Protect!

TN: Most part of the other character in the novel is depicted from a non-human perspective so expect something that is completely different from the common sense of human.