Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 2 - 2-3. The Chant, the Soldier and the Noisy Afternoon

A thousand years ago, a Rain of Evolution fell, and the world entered the Era of Evolution.Animals, plants, and humans all gained the potential to evolve into higher-level life forms.However, the human method of evolution is unique; they must absorb the extracts of higher-level life forms to complete their evolution, and each time they absorb an extract, they also acquire a skill from the extract's original owner.Absorb the extract of an “Undying Salamander” and gain the ability of limb regeneration;Absorb the extract of an “Iron Armor Oyster” and possess a flexible gender;Absorb the extract of a “Forest Giant Cockroach” and transform into an unkillable cockroach;Su Ze has come to this world, but before he can begin his evolution, he must solve his life-and-death crisis.“My name is Su Ze.”“I originally thought I had transmigrated and become a scion of a powerful official, but I never expected that I was just his clone, a scapegoat for him to escape punishment, a tool used for him to fake his death and get away.”“What's worse is, I'm scheduled to be executed tomorrow, but my cheat has not yet arrived...”

What got summoned was the world’s strongest sociopath.

He is an extremely wealthy empire president who is obsessed with his wife and loves to pamper her.

One day, the bodyguard came to report: “Master, the young lady has gone after her fiancé!”

“Master, the young lady confessed her love live worldwide!”

“Switch the photo and name to mine!”

“Master, madam, go to the hospital to have the child aborted!”

The handsome and noble man was furious, “Get the young lady back to me so that I can serve her well! Stop, I will catch you myself!” [After Marriage]

Su Fu glared at her extremely possessive husband: “Get a divorce, we can’t survive this life!” Shangguan Ling smiled coldly: “It’s just that, whoever you don’t leave is your grandson! I will give you the property and the little buns, and I will give you the property.” Here you go! Wherever you go I will go too!” (Nuan Chong)

- Description from novelbuddy

“From my viewpoint, this so-called supreme bastard’s body will serve as a valuable asset to simplify my life.”Dane was a carefree slacker until a deadly virus turned humanity into flesh-eating monsters—his own roommate included. After being devoured, he mysteriously awakens inside a simulated LitRPG world as a hidden extra, far stronger than the protagonist. Gifted with Adaptation and a heavenly beast, he rises through Soul Academy, defying expectations. However, a mysterious hindrance threatens his newfound power, forcing him to fight for survival.‘…One… Two… Three… Wake up!’