Card Printing: My Last Desperate Struggle

[Original Worldbuilding] + [No System] + [Almost Invincible] + [Cards]

Fake synopsis: After an accident, Hua Nian, a 26-year-old computer science master’s graduate, transmigrates to a world like Yu-Gi-Oh! The world is full of malice and persecution toward spirits, but ancient traditions still protect the last line that must not be crossed. The rational thing for him to do would be to throw in his lot with capital and use spirits as tools to become king. But an unexpected encounter and the influence of an ancient city change him, so...

When computer science thinking collides with card-game civilization, he will build a brand-new contract that turns the world upside down, with “home” at its heart.

Real synopsis: Wait, why are his monsters’ effects so ridiculously overpowered? They can keep bouncing back even after they die!

Wait, why can this guy put blank cards in his deck?!!!

Huh? How does he always draw the key card? I’m reporting him for cheating!!!

Hold on, why does his Kuriboh’s attack power have question marks for a number?

I want to inspect his cards! (in a French accent)

After accidentally taking off, Hua Nian heard variations of these sour, lemony complaints from everyone he played against.

Hua Nian could only wave a hand, looking a little speechless, and answer in a breezy tone: “There’s nothing wrong with the cards ⌯>ᴗo⌯ .ᐟ.ᐟ”