Upon returning to her hometown of Ikebukuro, high school student Homura Suzuko struggles to fit in with her peers. In a desperate attempt to make friends, she purchases a Wixoss deck set, hoping to learn the card game and connect with others. However, as she opens the set, she is stunned to see one of the card's characters come to life and speak to her. The card introduces herself as a "Selector" and explains that players must battle for control of five coins containing their memories. If a Selector regains all five coins, they win the game and can leave. However, should they lose, the penalty is severe...