Saimin Regulation - Extra-Arc 21: Touhou Sunou Devilish Girl-Arc

Quinn Winter is a young man from another world. One day, he is suddenly chosen to become the new Demon King. But the Demon Kingdom is in big trouble – it's losing a terrible war against the human kingdom called Gran'le.To help his people, Quinn comes up with a risky plan. He will sneak into Gran'le and learn their secrets. But things don’t go as planned. A powerful noble sponsors him, and he ends up joining Heavenward Academy, the top school for training future heroes.At the Academy, there's a big challenge called the Selection. The best students become Paladins – magic knights who fight demons. Quinn doesn’t want to become a Paladin. He is a demon king! But now, he’s stuck in the Selection… and if he wins, he’ll become the very thing he’s supposed to destroy.He started the day badly. Now, things are getting even worse.

A genius idiot born from an incestual marriage!

A young man with triple identities of worker, murderer, and university student!

Cadillacs and Dinosaurs, Sangokushi, KOF, Knights of the Round, Shadow Force, Street Fighter…

Each one of the arcade games you are familiar with has already been changed into a prerequisite for survival!

Slaughtering Shiranui Mai with Ya Otome, Jigoku Gokuraku Otoshi to kill Li Dian. There is only what hasn’t been thought of, there isn’t anything that can’t be thought of!

On an unknown day, when you walk down the stairs, you may accidentally walk into this —— arcade nightmare!

- Description from Novelupdates

In the 21st century, a female military doctor, Lu Jiao, transmigrated into a novel and became the vicious mother of four little villains and the wife of the future First Assistant.

In the novel, the four little ones would grow up into villains who committed all kinds of crimes and killed people without batting an eye. Eventually, they would end up getting killed by the male and female protagonists. To avenge his sons, the First Assistant would transform into the final boss and die after committing many sins.

Lu Jiao looked at the four little ones who were only up to her knees, then looked at the bedridden First Assistant. Forget it, she would do a good deed by educating these children properly and giving the First Assistant medical treatment while she was there.

What she didn’t expect was that the four little villains and the future First Assistant would want nothing more than to send her to her death.

They attempted to strangle her in the middle of the night, use broken pieces of porcelain to slice her arteries, and poison her food. Lu Jiao was furious. “I’m not doing this anymore. If you want to become villains, go ahead.”

However, the four little ones now refused to let her go.

“Mummy, please don’t go. We’ll be obedient from now on.”

Qin Shou arrives in the world of monster movies and activates an anomalous creature synthesis system, embarking on a true journey of fighting monsters and leveling up.[Marine Iguana] + [Huge Size] + [Atomic Reactor] + [Humanoid Adjustment] = [Godzilla]Ding! Godzilla similarity ten percent, reward: Intelligence Development.[Chimpanzee] + [Huge Size] + [Intelligence Development] = [King Kong]Ding! King Kong similarity fifty percent, reward: King Kong Transformation Card x1.[Bull Head] + [Deer Antlers] + [Crocodile Mouth] + [Snake Body]…+ [Anti-gravity Device] = [Divine Dragon]Ding! Divine Dragon similarity ten percent, reward: Mechanical Heart.[Mechanical Heart] + [Mecha] + [Devouring Spineworm] + [Flip Phone] = [Masked Rider Faiz]Ding! Masked Rider similarity ten percent, reward: Light Energy Converter…………[Light Energy Converter] + [???] = [Ultraman Tiga]……Three hundred years ago, the king of monsters Godzilla and King Kong fought a century battle……Two hundred years ago, alien pioneers opened a dimensional gate……One hundred years ago, the Jurassic theme park became a land without an owner……New Century 120……