MTL - Starting Off Survival With A Small Treehouse - Chapter 548 genetic modification?

Summoned by a beautiful woman to a different world, Yamai Zenjirou is asked to marry her and make a child with her. Will he throw his life on earth away for a sponger life with a beautiful woman?

In this world, orphans or just anyone without any hope for this world can apply to become a “walking target”. Their sole purpose is to be a practicing dummy for the students of the sect who train to become “Demon Hunters”. These students need “walking targets” to test their training on living, walking beings of flesh and blood.
In exchange, they will be provided with food & shelter.
Their existence value is lower than a slave, but if they manage to survive a few years they can receive a life long pension.

Xiao Han is such a “walking target”. One time he witnessed a powerful Demon Hunter disposing a demon. When the demon died, a fragment of the demon that managed to escape entered Xiao Han’s heart. No one saw that, and even Xiao Han himself only felt some discomfort for an instant.

But that thing in his heart soon gave Xiao Han visions, and the first one is of a cultivation method which allows Xiao Han to absorb damage to enhance his body. A perfect cultivation method for a “walking target”.

- Description from Novelupdates

--WSA 2025 ENTRY--Neraxis saved the people and wiped out the monsters, but instead of cheers, he faced silence and a glowing blue text:[Task Failed Successfully!][Rating Generated: SSS-Rank]“The hell does that even mean?” he muttered, finding the situation a bit strange.Before he could process, the so-called heroes—who had hidden while he fought—emerged. He waited for gratitude, only to feel a dagger pierce his back.The only girl he loved stood behind him.She betrayed him.The crowd and heroes? They were staring at him with disdain and contempt.“You...” he groaned as a spear and sword headed for him, ending his life.But instead of dying, he was sent back to the past—specifically, to the first day of the academy, year 2367, 8 years before his death.However, many things had changed. One of the most significant was the sudden appearance of a Tower, a mysterious structure that had appeared across all the continents, granting power to those brave enough to contest its challenges.“Not again... With this chance I will end you all” Neraxis vowed to himself, embarking on his path of revenge, while also trying to give his life new meaning.

The name Projection of All Worlds website that appeared in each world has been around for a while.One day, Jiang Xia comes to a so-called universal projection website invitation, just register to send the manuscript and there will be a reward......So, one after another, the famous scene began to show its light.Top10: Oath Under Snow: Emiya If this is evil, then I am evil! Can you give me back Miyu?Top9: Luffy vs Kaidou: This is my country's friend, if I don't defeat you, I can't become the Pirate King......Top8: Mount Natagumo : Hinokami Kagura-Dance.....Natsu from Fairy Tail also wanted to protect his comrades, and he looked at the contemplation with the crowd of people, and also made a choice......According to the image of each scene, countless people felt their enthusiasm boiling and therefore moved, as a result, the Heavens of All Worlds began to return to heaven......The novel and the character are merely fictional, as if they have similarities, mere coincidences, and should not be imitated.