I Am in Marvel with Unlimited Cards - Chapter 16: IMUC- - : INFINITE ENERGY

What is it like to own an abandoned oil town in the West? At first, Xu Xing simply wanted to provide some convenience for travel enthusiasts and camping enthusiasts traveling by car to the northwest.

However, it has been out of control since then…

The stall has been upgraded to a convenience store with a unique style, the instant noodles cooked in an earthen pot have been transformed into a restaurant that provides hot and authentic beef noodles, and the shack has been transformed into a hotel that is unique in the country and can look up at the deep starry sky. The tire point has been upgraded to become a gas station and maintenance station….

after that,

The town unknowingly became the size of a small county town…sixth tier, fifth tier, fourth tier, third tier…a few years later it became the only new first-tier city in the northwest Gobi Desert…

- Description from novelbuddy

Somebody once told a joke.A man ran in place all his life. He worked a job he didn't love for people he couldn't stand. But at the end of the day, the number in his bank account went up.That man got a second chance at life. He woke up in another world, full of adventures and romances and monsters and gods. And floating above his head he saw the number “1”. So what did he say?“Gosh I better make the number go up.”Not today. Not for this old soul. Reborn as a beast of battle meant to live a short life and die screaming, Garek refuses. He puts the madness of skills and levels behind him and sets out to found a little farmstead. He grows crops. Maybe someday he'll get a pig, and have bacon.It's a shame the world won't let him be. It's a shame that the warmongers and level-grinders hate nothing more than a soul at peace.He put down his sword for a plowshare, but when trouble comes calling, he'll pick it up again.

After dying in an oddly anticlimactic vending machine accident, Kazuki Ren is reincarnated in the demon realm—not as a hero, not as a villain, but as the only human male student enrolled at the mysterious Academy of Ruin, a school where all the professors are demon lords and all the students are powerful, beautiful she-demons.Ren is told he has one task: survive.But there’s a catch. The Academy’s darkest secret is about to awaken, and Ren holds a hidden power that could either destroy the demon world... or rule it.Now surrounded by seductive demons with hidden motives, eldritch tomes, forbidden dungeons, and twisted exams, Ren must master his ability—or be consumed.Magic, mystery, danger, and temptation await in this dark academia harem fantasy.

A 29 year old civil employment exam student wakes up in a blank white room and meets a baby angel. This baby angel informs him that he died in his sleep due to heart disease like his father and grandfather. Remembering his mom and their last conversation he says that he will take on a series of life and death tests that the baby angel offers him. From this point on he must put his life on the line and fight in the stage called ‘Arena’. And Every time he clears a test he will gain abilities and weapons to increase his strength. All to clear the tests and get his life back. This is his story of his fights in the ‘Arena’.