We're Playing with Mecha, and You're Playing as Evil Belial?

In the future, humanity has mastered wormhole jumps and entered the age of interstellar colonization, opening Pandora's box in the universe.

Countless cosmic monsters awaken, intent on wiping out all of humanity. They include the Zerg legions, the alien Barton, the King of Monsters Red King, and even Alien Empera, known as the Dark Emperor!

Fortunately, the Human Federation has incredibly advanced technology. To resist the monsters' invasion, it develops a mecha technology!

Mechas grant their pilots the tremendous power to fight monsters!

Su Yang transmigrates here and becomes a criminal from the start. He is exiled to a prison planet, and to make matters worse, the Zerg armies will soon arrive.

Just then, Su Yang activates the Roleplay System, becoming the wickedest Ultraman Belial from the start!

After that,

Tiga, Saga, Taro, the Mysterious Four Ultras, and others make their appearances one after another, and in the end, he even founds the Land of Light!

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