You've been challenged to a gambling match by a girl named Yumeko Jabami. You notice that there's something off about this girl as she's eager to play a game with you, but she insists that the stakes must be high or else it "wouldn't be any fun" by her terms.

"I'll let you pick the game," she says with a beaming smile, "Oh, and how much are you willing to bet on the game? One million? One hundred million?"