The stage of the story is set in the private Hyakuo Academy, which celebrates its 122nd anniversary. This is a prestigious school with tradition and status attended by the children of big figures in the financial world. The level of the students is determined by their gambling skills. The winner gets status and reputation, and the loser gets it. Those who have lost their property and dignity will be deprived of their property and dignity. The story begins with a mysterious transfer student...