Ryuu Kusari no Ori -Kokoro no Uchi no “Kokoro”- - Chapter 7[LN] Volume 4: .3

An 18-year-old gamer, dies and reincarnates into the world of Records of Istea—the game he was obsessed with. He awakens as Raze Dragonheart, a crippled cultivator with a fragmented core but exceptional stats and an [Absolute Genius] talent.Armed with complete knowledge of the game's plot, quests, and hidden secrets, Raze plans to systematically complete every major storyline before they unfold naturally, claiming artifacts, preventing disasters, and recruiting key allies. His strategy: “swallow the plot” entirely, reshaping the world's destiny through foreknowledge and strategic intervention.His journey begins with saving his dying sister and evolves into a mission to rewrite fate itself.

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

The ordinary youth lacked the exceptional talents of his peers, yet he possessed a shocking heritage, bearing a mysterious bloodline and harboring the spirit of the Evil Dragon.A deadly incident caused the youth to fuse with the Evil Dragon's memories and his Martial Soul, his divine might shaking the heavens!The dormant dragon was startled awake, its roar shaking a thousand mountains.

Initially I am just another ordinary gamer. I often wondered how my novice skills compare with real masters, the professional gamers.

Then one day, two stunning beauties asked me, “Are you willing to be a professional gamer, and conquer the world?”

I replied: “Yes, I am willing”

After that, bit by bit, I unknowingly become a professional gamer, and conquered the world!

This is my story.

- Description from Novelupdates