Mountain Sitting Immortal - Chapter 293: The Most Difficult Test.

Zheng Tan somehow returns to the year 2003, turning into a black cat. Picked up from a rubbish heap by the Jiao family, he is given the name “Charcoal”, and so begins the life inside Professor Jiao’s family. Zheng Tan remembers that he was once a person, but currently his body is that of a cat. He has no way of speaking the human language, but can understand it, and even retains the thinking and IQ of a young 20 year old youth. Read along as he adapts to this new world, and somehow tumbles from a group brawl to catching a thief.

- Description from Novelupdates

In a world of shallow-minded, materialistic mortals, what would one from humble beginnings – whose face had been stomped on, spat on, oppressed for the longest while by the arrogant, pampered upper echelons of society – do, when a mysterious application pops up on a brand new phone that was meant to be the birthday gift of an ungrateful girlfriend? What if the application takes the form of a chatroom where its occupants, bearing the names of mythical, fictional beings, start giving out ‘Red Packets’, all the while spouting nonsense?

Keeley, a simple plain Jane, hits the jackpot. [No, she did not win the lottery!] At least that's what she thinks when she marries the most eligible bachelor in New York City: Aaron, a wealthy cold-hearted heartthrob and Tycoon.

Jaden Cross is a young man trying to survive in the shadows of Neo-Lagos, a futuristic city where the poor live in broken homes and forgotten slums. Orphaned at six and forced to grow up fast, Jaden spends his days fixing scraps and dreaming of a better world—a world he believes he’ll never see.Until one night, everything changes.A mysterious glowing orb appears in the sky and connects with Jaden’s mind, activating the Tech Architect System—a powerful, sci-fi interface that gives him access to futuristic blueprints, instant-building tools, and system quests that reward him for solving real-world problems.His first quest? Restore power to his neighborhood using solar microgrids.Soon, Jaden is building cooling shelters, clean energy systems, and AI-run apartments—one project at a time. But with each success, he draws more attention. The city’s leaders want to control him. A rival from the tech underworld wants to steal the system. And darker forces are watching from the skies, waiting for the Architect to grow.Armed with only his mind, his hands, and the Tech Architect System, Jaden must rise from the ruins of poverty and become the builder of a new future.But in a city full of secrets, will he remain its hero… or become its biggest threat?