My Sister Guards the Nation While I Build a Mecha, and Now It’s Been Exposed!

A forbidden land appears as part of a national destiny challenge. One person is chosen at random from each country to enter the land and fight to survive.

China's contestant, however, is just an ordinary sixteen-year-old girl!

"China is finished!"

As the whole world gloated,

countless monsters swarmed her. The girl wielded a straight-bladed Tang sword and slaughtered them left and right, shocking the entire world in an instant!

At the same time, China Central Television came to interview Wang Zhe, the girl's only relative.

When the reporter saw the enormous steel mech, he was stunned. "You're telling me this is just an amateur invention?"

Then, as contestants from country after country died and monsters teleported in to attack nations around the world, the whole world teetered on the brink of disaster.

More of Wang Zhe's inventions were revealed: vibration-particle battle blades, powered exoskeleton armor, plasma electromagnetic cannons, anti-monster combat mechs, mobile war fortresses, and more!

"Help! Our country is willing to become part of China!"

As countless countries cried out for help, Wang Zhe raised his arm and declared, "Now, our whole nation will follow me into the forbidden world!"

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.