Dead on Mars - Chapter 40 - Sol Five, Mars United Space Station

On June 6th of the fifth year of the Great Wilderness, it was the fifth year since Yang Xu came to the ancient wilderness, he established the Daxu Kingdom in the wilderness and proclaimed himself king.

The country has one city, three towns, and nine thousand people.

Among the people are the fox clan in Qingqiu, the mermaid people in the East China Sea, and the blue bird clan.

The fox family is good at illusion, the mermaid can control the water, and the blue bird soars nine days.

Not long after the founding of the country, the Yuren found a lifeboat in the northwest waters of the Daxu Kingdom, and captured six human races, talking to themselves as American federalists.

Yang Xu:? ? ?

Come on, I have already established a country, you said that I am still on the earth and have not traveled through time?

- Description from novelbuddy

High-school student Koremitsu Akagi finds himself attending the funeral of Hikaru Mikado, who had died in an accident during Golden Week. He’s not sure why he’s there, as he only exchanged a few words with Hikaru at school. However, Hikaru doesn’t seem to be completely gone from the world, as he comes back as a ghost in order to fulfill a promise to Aoi Saotome, his fiancée. Since Koremitsu is the only one who can see him, he asks him to carry out his promise in his place.

Complying with his request, Koremitsu tries to fulfill Hikaru’s promises to the rest of his “girlfriends”, helping them overcome past misunderstandings and repair broken relationships.

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