Duel Monsters of Global Cards

When he woke up, Lin You found that the world had changed drastically. Monsters of all races roar and bombard wildly, field magic cards form a deep sea out of thin air, royal tombs, skyscrapers, and trap cards are infinitely possible. Duellist colleges and universities all over the country are rising, and the miracle secret realm is full of dangers. This is a world where all people chase cards, and the era of card duelists shines. - Description from novelcodex.org