I Carry the Demon Realm with Card Draws [Infrastructure]

A barren wasteland where not a blade of grass grows, explosive lava erupting without warning, and ugly monsters that are savage, filthy, violent, and bloodthirsty... This is everything the outside world knows about the Savia Demon Realm. Warren, who contracted with a card-drawing System to find his lost memories, looked at the familiar spirits kneeling all around him, then at the identity card he had just drawn: Unlucky Demon King. Bonus items included with the card: Blood Curse x1, Rebellion x3. Warren flipped the table in a rage. "What do you mean, unlucky Demon King? I'm definitely a lucky draw king!" - "Congratulations, you drew an SR card: How to Make Quicklime and Its Many Uses." And so, the demons who had been digging holes to hide underground from the cold got warm, safe little homes. "Congratulations, you drew an SR card: How to Eat and Cook Black Beans." And so, the demons who had been gnawing on raw meat learned to cradle wooden bowls and slowly sip delicious soup. "Congratulations, you drew an SSR card: Materials and Basic Steps for Making Paper." And so, the demon children started carrying little schoolbags and reciting the story of the tadpole looking for its mother in their clear little voices. - "Congratulations, you drew an R card: All the magical power of the previous Demon King." Warren: ? Wait, is this System's ranking of R cards just a tiny bit biased? Theme: Creating a beautiful new world