为了玩大受欢迎的游戏“心跳不已♡狸猫王国”，小麦、彩羽、小雪、麻友、大福和悟聚集到了一起！ 大家相处和睦，游戏开始！本应如此...但大家好像被吸入了一个有着奇怪狸猫的世界... 更大的危机是！小麦和彩羽她们渐渐分散了...！？ “想要一直一直留在彩羽的身边汪！“为了去见最喜欢的彩羽，小麦决定去挑战各种各样的游戏！ 到底为什么会发生这种事...？游戏世界里所隐藏着的秘密又是什么...？线索掌握在游戏的创造者——少女夏希的手中。 「开阔天空！光之美少女」和「魔法使光之美少女！」也集合了起来！ 当大家的心绪合为一体之时，精彩绝伦的奇迹就会发生！？

The story begins the day before the graduation ceremony. Five middle school girls each are preoccupied with their real everyday lives. These girls meet each other in a fantasy world after being sent there through a sudden occurrence. There, they learn about the impending crisis that this world is facing. The way to avert this crisis is for the five to collaborate and bring their five hearts together as one through dance. However, the five cannot come to love the world, and cannot tell their true feelings to one another, so their hearts are unable to unite. The time limit is fast approaching. Can the dance of the five girls save the world? And will they be able to graduate?