My Yandere Succubus Daughter is Mommy-Warrior's Natural Enemy - Volume 1 Chapter 3

Long ago a great calamity struck the earth, destroying much of it and merging what remained with pieces of other worlds.

With these worlds came Aether, a new form of energy that can allow one to transcend the bounds of normal mortality and human limitations.

In a world where humans absorb the essence of aether beasts to gain power, Aiden Hawke joins the class of humans known as arcanists, people who defeat aether beasts and absorb their essence into cores they forge within themselves, and who infuse themselves with the aether that permeates the world around them to increase the power of their body and mind.

However, unlike most, Aiden will find that he holds a unique gift and that his journey as an arcanist will not be so simple.

Xu Xing Zhi wrote in his story: At the mountain, near the ocean was a group of villains, they are cute and clever. They are fantastic oddities of every description, they are industrious and conscientious, they want to escape from the prison.

Afterward, he transmigrated into the story. The world said: Your presence disrupted the balance of the world.

You will have to kill those villain bosses that escaped from the prison.

Xu Xing Zhi said: “Sorry, I am a salted fish.”

The world said: “It’s alright, the villain is your junior brother that you pampered from young, he listens to you the most.”

Xu Xing Zhi: …… I did not write this.

Boss with a gentle face: “ Senior brother, you love this gold necklace or this silver necklace? You slowly choose, I will listen to you.”

Xu Xing Zhi: “….. I really did not write this.

-this, was all you wished.

Meng Zhong Guang softly said: “… but if I lost Senior Brother, I really will have nothing left.”

This heart, ridding with gaping wounds, filled with pus and sore, had truly loved you before.

- Description from Novelupdates

Qin Tian accidentally transmigrated into a sickly body, a body with broken Dantian that was unable to practice Qigong, in another world. Fortunately, God had mercy on him by giving him a level up system. Useless? That was him in the past. Not worrying about practicing Qigong, he was now able to kill Monsters to level up. Easy! Level up when killing Monsters; level up when killing people. An unbeatable sovereign of the clan in the eyes of other people, but in his eyes, he is a glittering big BOSS.