Demon Cards: The Era of Universal Sealing

Three thousand years ago, countless space gates appeared on Mercury. Many strange beasts poured through them. When humans killed these beasts, they dropped a card called a Magic Card. Humanity officially entered the Magic Card Era.

Three thousand years later, a soul transmigrates into this world. After enduring eighteen hard years, he activates a System, and from then on becomes invincible.

While everyone else is still fighting over star-grade Magic Cards, even his underlings already have god-grade Mocha Cards.

While others struggle to cultivate without making any progress, all he has to do is buy a pill from the System's shop to quickly advance to god-tier.

While others still lack decent cultivation techniques, the books he uses to prop up his table are all divine-grade manuals.

This is the era of Magic Card Masters, and it's his era, too.

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