MTL - The Book of Troubled Times - Chapter 270 blood stained sand

He was on his way to buy some beer to celebrate his acceptance as a civil servant when he was suddenly isekai’d by truck-kun.

“You will be my wife one day.” Declared Liu Jun - the handsome and wealthy young master to his beloved childhood friend. He vowed to marry her at all costs. But that vow made him a villain. The woman he desired didn't return his love. Crazy and heartbroken, he crashed into her wedding, who was going to marry the love of her life, Liu Jin, unfortunately his own younger brother. Circumstances took a drastic turn, leaving him with only one choice to pay for his sins - His death. But fate gave him another chance. Liu Jun was reborn. In this new life, he chose to let go of his love and start anew. He discarded his villain's identity and closed his heart forever. But a new encounter and new troubles come knocking on his door with the secrets of his past life that even he doesn't know. Will the villainous Mr. Liu find his happy ending this time? *Excerpt* Ai said, “I forgot to clarify something. It seems you have a misunderstanding that I am interested in you because I stared at you.” Jun blinked once. “Rest assured that's not the case. I won't look at you that way. You are not my type.”

Riku Aoyama was just a broke, unlucky and starving college dropout waiting for his time and scraping by on instant noodles, and ended up as part-time buddy—until a mysterious vending machine offered him a deal: a system that lets him buy anything.Want a skills? Check.Looking for knowledge? Instantly downloaded.Legendary weapons? Delivered to his door.Authority, time, fate, even the affection of others? All up for sale—if he can pay the price.With the Infinite Wallet System, Riku’s once-pathetic life turns into a wild ride of action, opportunity, and temptation. From unlocking forbidden martial arts to building a harem of powerful women drawn to his rising charisma, Riku is determined to forge an empire, one purchase at a time.But every system has its cost. As he gains power, hidden forces begin to notice his ascent. Gods, demons, and beings beyond reality have started watching—and some want to claim the system for themselves.Action-packed, hilarious, and mature, this is the story of a man who can buy everything—except his own peace of mind.

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