When a Newbie Comes to the World of Playing Cards

"I will stack two monsters and show up, No. 39 Hope Emperor." "I will liberate all the monsters on your field and special summon the primitive life form Nibiru." "Pfft." The sound of vomiting blood "In this world, my name is Yuhe Longxing? It seems like this, um... It's difficult to survive in this world without playing cards. Who told me?" "Well, actually, I just asked you to save the world. It's just a game of cards. The savior has been delivered, please sign for it, hehe..." "Hey, I can't..." "Growth-type protagonist, this setting is for you." "This is too messy." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.