In the "Era of Great Beast Control", when humans and pet beasts merge and transform into mechas, this is the only criterion for measuring a person's value. Other people's pet beasts are a lion that turns into a heavy battle tank, and a falcon that turns into a reconnaissance aircraft, while Ren's pet beast, the cheese cat Wufu, is less than two meters tall after transformation, with S-level cuteness and F-level combat ability.
As a glorious "logistics repairman", Ren's ideal in life is to repair the mechas of those S-class heroes, receive a dead salary, and be a common man with Wufu for the rest of his life. However, an invasion by a top beast king from deep within the beast tide shattered his dream of retirement. In the desperate situation where everyone was suppressed, Wufu went crazy to save him.
A dazzling light flashed, and the roar of the legendary "Emperor Engine" resounded across the battlefield. That cheese cat that only knows how to step on milk has evolved into the next-generation cat-shaped Gundam equipped with a Star Destroyer Cannon.
Since then, Ren and his "Five Blessings Generals" have been involved in the center of the whirlpool of mankind's top combat forces, alien beast kings, and mysterious rebels. When everyone coveted Wufu's power and wanted to use it as a war machine, Ren hugged his cat owner and shouted to the world:
"It is my partner, not a weapon. If you want to move it, first ask if my Star Destroyer Cannon will respond."