
Run by a corrupt and sadistic school council, the “system” at Hyakkaou is based on gambling, with losers who cannot cover their debts being demeaned by their peers and forced to serve their debtholders. And if that’s not terrifying enough, some games can result in losing an eye, one’s fingernails, or even their life! But the system is shocked when transfer student Yumeko Jabami arrives. Dark, mysterious and attractive, she’s a wildcard who plays for the thrill of it…

Reigning class gambling champion Mary attempts to hustle unsuspecting transfer student Yumeko Jabami into a high-stakes game of rock-paper-scissors.

Mary is relegated to the lowest levels of the gambling hierarchy after her loss. Student board member Itsuki challenges Yumeko to a game of pairs.

To regain her status, Mary duels student board member Yuriko in a game of "life or death." With Mary's crushing defeat, Yumeko offers to play next.

Yumeko and Mary square off against two others in a game of Indian poker after being given a chance to minimize their colossal gambling debts.

Kiwatari continues to lose as Yumeko and Mary bluff their way through the game, but the final outcome all comes down to Tsubomi.

Yumeko must face Beautification Committee Chair Midari in an ESP card game involving Russian roulette before playing the student board president.

Deeply engaged in their deadly ESP card game, Midari tells Yumeko about her heated match against student board president, Kirari.

In Kirari's absence, pop idol sensation Yumemi offers to play against Yumeko, asking her to wager total control of her life.

With her pop idol career on the line, an enraged Yumemi seeks to ruin Yumeko after a scandalous voice recording is used as a bargaining chip.

Yumeko's odds are stacked against her when she challenges the well-funded student board treasurer, Manyuda, in an original game of poker.
Available on: MBS, Tokyo MX