It's about to get extreme! An amateur Blader teams up with a mysterious ex-champion, and together they aim for the pinnacle of the X Tower.

Former ninja Joe Higan is ambushed by assassins who seek bloody revenge on him and his family for their betrayal, after escaping his clan and fleeing into rural America.

High roller Yumeko Jabami plans to clean house at Hyakkaou Private Academy, a school where students are evaluated solely on their gambling skills.