Reiko Homura (voiced by Chiba Hashimoto) is a female high school student with a slightly introverted personality. After transferring to a new school, Reiko found that her personality made her unable to integrate into the class circle for a long time and felt a little lonely. Recently, a card game called "WIXOSS" has become popular in the class. Reiko hopes to use this as an opportunity to narrow the distance between herself and her classmates, so she walked into the store and bought a set of cards. What Reiko didn't expect was that the moment she opened the card, the standing girl Lilu (voiced by Shizuka Ito) on the card moved. It turned out that Reiko was involved in a game with memory as the stakes. All her memories were condensed and sealed into five coins. This is all the chips in her hand. Reiko will use these five coins to compete with other participants. If she fails, she will lose all her memories.