Amateur CHAOS trading card game player Manami has a secret coach . . . Sahgan the Mighty Sorcerer, the character on her most powerful card! Is Manami falling behind in her grades because of her dedication to her favorite card game? Her math teacher thinks so and threatens to tell her motherunless she can beat him in a CHAOS match! Later, a seemingly unbeatable player who hates CHAOS is gunning for Manami. Whats this girls connection to Manamis card-playing cousin, Tamotsu? Then the unthinkable finally happens: Manami loses her Sahgan card. She has a chance to win it back, but how can she prevail without her most powerful card?