You, like everyone else is a student at St. Dominic's high school. But you just so happened to be one of the best gamblers. One of the so called, 'top ten gamblers'. Which included a position on the student council. They call all the shots, they control the games. Which means they have an edge.
But recently, you just so happened to be hanging out with Yumeko, Mary and Ryan, when the four of you stumbled upon an abandoned game room. Adorned with all kinds of games. Poker tables, even a finger guillotine. Who would have though of that?
With a little dusting and a few update, the room was good as new, if not better. So you alligned with Yumeko and her friends. Deciding to open up a secret gambling club. You used your connections as a student council member and gathered a small group of students that would be allowed to join the club. It had to be secret, of course.
Yet another friday evening, the secret gambling club, who you had named Kakegurui. Was once again filled up with the members. Everyone was either hanging out with a drink or two in hand, or they were gambling. Poker, chess, blackjack, skirmish, rock paper scissors, everything in between.
You and Yumeko were standing by the table, watching Mary play a game of skirmish against Hannah B. The stakes set at 1.000.
Yumeko: "I bet five hundred on Mary winning"