Chaos Devourer System - Chapter 421: Mistake!!! Author Sama Aplogizes for the inconviences

After choking to death on a watermelon, Rong Jiahui thought that she would enter the netherworld and be reincarnated.

But when she opened her eyes, she discovered, to her very horror, that she had returned twelve years into the past…

Looking at the beautiful and awkward “little brother” that would be conferred the title of Marshal in the future for outstanding military service, she almost let out a snort of laughter.

She firmly decided to hug the thigh of this little brother, and climb to the top of her life!

The plan was beautiful, but it had just one problem.

Why had this little brother… suddenly turned into…

A little sister…

- Description from Novelupdates

In an inaccessible village, there were a few houses on the hillside.

People from far away were attracted here and the mountain road was crowded with luxury cars, because, in this town, there was a young man with incredible medical skills who could cure all kinds of illnesses!

- Description from Novelupdates

—〔WSA 2025 ENTRY〕—What happens when fate twists reality itself? What if someone finally obtains the one thing they've longed for since birth?Arvian got reincarnated into a horrible novel after performing a ritual to claim mysterious rewards offered by Webnovel—the Webnovel System and an Exclusive reward.Waking up in a cave surrounded by a villainous organisation, Arvian found himself; luckily, he was reincarnated with his own body.He sees cruel people, bloodlines, demons, reapers, monsters, and elves, and unfortunately gets dragged by UNHUMAN MISSIONS.Follow Arvian as he finds himself stuck with unhuman missions after failing a mission.Ding!][System Initializing...]...[All Activation Conditions met][Webnovel System Activated!]Congratulations! The Webnovel System has been successfully activated![Webnovel System]:「Gain 3x rewards for completing quests, missions, or eliminating enemies.」「Access the Novel Store, where you can purchase any item or ability of your choice from the novels you have read.」

He wants indoor plumbing. They think he’s conquering the world.Arthur was a genius engineer on Earth, capable of optimizing global logistics and automating entire factories. But he lacked one thing: common sense. Now, reincarnated as Arthur von Pendelton, the six-year-old son of a powerful Duke in a medieval fantasy world, he faces his greatest challenge yet: Drafts.Armed with the T.E.C.H. Interface (Trans-Epochal Construction Heuristic), Arthur can analyze magic like code and build modern technology from scratch. His goals are simple: Double-glazed windows, hot showers, and a toaster that doesn't burn the bread.But there is a problem. The people of this world don't understand engineering.He builds a high-pressure boiler for a bath; his father thinks it’s a “Dragon-Breath Siege Weapon.”He creates a hydroponic garden; the local church declares him the God of Harvest.He ignores a Princess's flirting to analyze the thread count of her dress; she thinks he is playing “hard to get.”Follow Arthur as he accidentally industrializes a kingdom, terrifies his enemies with home appliances, and remains completely oblivious to the fact that he is becoming the most powerful man in history.All he wanted was a warm bath.