Obsessive gambler Yumeko Jabami may know when to hold them and when to fold them, but knowing when to walk away and run has always eluded her. That's bad news at the insane Hyakkaou Private Academy, where students must gamble their fortunes, futures and lives in an endless series of competitions to determine who rules and who become slaves. Yumeko's razor-edged instincts, skills, and the devil's own luck have kept her going thus far, but when the...