Magic's Return: I Can See The Spirits - Chapter 5 Vaan Astra Vesta.

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

Attribute Classification: Overhead/Western Magic/Strong Attack/Sweet

- Description from novelbuddy

In the legends that were told, ten thousand years ago the twelve demon kings wreaked havoc upon the world, almost completely destroying it. Ten thousand years later, the late arriving Bella discovered that she had been screwed over by her reincarnation, the ranks of the Saviors are already filled and she has to change teams in order to pass the days. Having her gender changed into a beautiful girl… she endured that, not being able to join the righteous side and obtain cheat abilities… she endured, but what she could not endure, was that the world that she had transmigrated to was toxic beyond belief. No one here does their rightful jobs properly, be they heroes, demon kings, or creator gods… in fact, Bella felt as if they all had also started with the wrong faction!

Having opened his eyes once more, Chu Zheng found the world turned upside down. He had transformed from a Cultural Relic Restorer into a household slave.At the same time, a new feature had emerged within his body: a Repair Panel that refreshed daily, enabling his skills to continuously advance.【Incomplete Mantra (repairable)】→【Great Circulatory Breathing Guideline】【Ruined Temple Remnant (repairable)】→【Ancestral Dao Golden Body】【Damaged Spirit Root (repairable)】→【Superior Quality Immortal Bone】…………In an era of cultivating truth, heroes compete fiercely, and prodigies rise together.From ancient times, sages and wise men were buried by the sands of time; a lifetime of glory or disgrace turned to naught in a blink, and only a few names are recorded in the annals of history.Having lived this life a second time, Chu Zheng did not seek the arts of immortality, but merely wished to have his name remembered by future generations.