Why Not Let Me Play Cards to Save the World?!

Bad news: I transmigrated. Good news: It's a parallel world that looks perfectly safe. Bad news: A dimensional rift suddenly opened in an otherwise normal world, and a whole lot of Yu-Gi-Oh! monsters are about to invade. Good news: I have an extraordinary sixth sense and the ability to see spirits, which help me gather intel. And from the start, I even picked up an incredibly powerful Tearlaments mermaid who became my guardian spirit. Bad news: This follows the lore from the card artwork, not the anime, so multiverse-level powerhouses are everywhere. Good news: It seems I've become friends with plenty of powerful and gorgeous female card spirits, and we've agreed to save the world together. Except they don't appear as card spirits, but as real, physical beings... Is that really good news? Before being locked away in an isolated world unknown to anyone, Luo You let out a despairing cry through his ragged vocal cords: Just let me save the world by playing cards!