7th Demon Prince Jilbagias' Chronicle of Demon Kingdom Toppling - Chapter 9.2 - 『Chronicle of Demon King Founding Nation』

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

...Sneak Peek into a chapter...

It never occurred to her that she would marry a man when they first met! Yan wen and Jiang suian's marriage was very sudden. Betrayed by her boyfriend and best friend, she married the stranger she met for the first time in anger. What she didn't know was that the stranger turned out to be the most famous CEO who is rich and handsome.

Although they just know each other for a short time, she was attracted to him all the time. When she encountered difficulties in work, he always appeared to help her out in time; when she was hurt by someone close to her, she was always comforted by him.

Appreciating his charm, feeling his tenderness, she began to rejoice that they get married at the first meeting.