Gimai Seikatsu - Days With My Step Sister - Chapter 116: June 13th (Sunday) — Asamura Yuuta

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

Due to the abnormal arrangement of her sixth chromosome, she became a legend in genetic medicine. This is because her vision and hearing are 21 times greater than those of a normal human, while her running, jumping, and arm strength are 33 times stronger, and her regenerative and self-healing abilities are as high as 84 times those of a normal person. However, her father hated her, and people around her disliked her, regarding her as a monster.However, he was the only one who would like to be friends with her. He is the sickly yet most drop-dead gorgeous man in the entire imperial capital. Three steps will make him pant as if he'd just finished a full marathon, and taking five steps was enough to make him cough like a chain-smoker.It is said that one would easily forget the beautiful people of the world upon laying eyes on him.She said, “This pretty boy belongs to me.”

Damian, a Centurion of the Punishment Unit of the Baroque Kingdom. “Damn it.” Just once. If I were given just one more chance… ‘I would have truly conquered the battlefield with these guys.’ At the age of 30, he closed his eyes on a nameless battlefield. But when he opened them, he found himself back 17 years in the past. And this time, he had a perfectly functioning mana core that could wield magic. ‘This time.’ I will rise higher than anyone else. I won’t be swept away by the turbulent times. ‘I will conquer.’ Damian, who has returned to the past, wields his spear toward the world.

Once upon a time, there was an office worker who was dragged by his boss to take a hot spring bath. While he was soaking…

This is probably very serious. He came to a Beast world and was licked out of his sleep by a golden lion. The lion accompanied him. Only then did he understood this world… when he came to the lion’s tribe, he found that this was really not an experimental base…

- Description from Novelupdates