MTL - Naruto: The Village is on the Verge of Bankruptcy, I Dug Out the Oil - Chapter 17

Year 2056, in a city in the Yuan Jiang Su Jin area. On top of a ruined, shattered six story residential apartment sits a teenager wearing a combat vest, militaristic trousers, and alloyed battle boots. On his back is a hexagonal shield and equipped is a blood-shadow battle knife. He sits there silently on the edge of the roof. At this time, the sparkling sky was shining and there was a refreshing breath within the air that blew towards him. However, there was only silence within the ruined, deserted city, with an occasional howl that makes your heart skip a beat.

- Description from novelupdates

The World Tower has unimaginable wealth and treasures. Once a week, as long as you rush high enough, you can surpass ordinary people and enjoy a brilliant and glorious life.

A thousand floors are capped, and some people say that reaching the thousand floors can get the wealth of the whole world; some people say that above the thousand floors is a beautiful new world or even heaven; some people say that they can obtain the power of gods;

Unfortunately, no one has reached the summit for thousands of years.

The strongest team in the world rushed to the 929th floor, which was unprecedented, and was still destroyed.

Wang Wen survived.

Time went back to twenty years ago.

Reborn with all the emotions and experiences, the lush Wang Wen in front of the World Tower is calm and determined.

- Description from novelbuddy

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

Lu Yanzhou’s best friend Xie Chengze’s soul was broken into fragments and fell into those small worlds. In order to save Xie Chengze, Lan Yanzhou embarked on the journey to collect Xie Chengze’s soul fragments.

However, he made a mistake in the process of collecting his soul fragments. He fell in love with Xie Chengze’s soul fragments.

Xie Chengze said he cultivated the ruthless dao. He was cold hearted and emotionless but he has always regarded him as a brother. He took advantage of when the other party lost his memories to fall in love with him…

The end of the first world, Lu Yanzhou, who was in love with Xie Chengze, was struggling: “When Xie Chengze recovers his memories, will he beat me up?”

After the end of the second world, Lu Yanzhou, who had another romantic relationship with Xie Chengze, made up his mind: “There’s absolutely no next time! Xie Chengze probably won’t break off all relationships with me?”

The end of the third world, Lu Yanzhou was apprehensive: “I’m here to save him..”

The Nth world ended, Lu Yanzhou broke the jar and threw it: “Wait until Xie Chengze recovers, I’ll go after him. There might be a 1% success rate, right?

Xie Chengze: “…” I took the initiative so much, are you blind?

- Description from Novelupdates