"Guess what card I am..." Yi Huaisong held a card casually.
"I guess..." Song Que stared into his eyes, "It's a blank card."
"What a pity, I guess you got the answer wrong." Yi Huaisong smiled meaningfully, and the card in his hand instantly turned into the Ghost Ace.
Ghost King, Ghost King, I hope you can hear my prayer and let me sleep peacefully...
Concept: the world