本作是以《BLUE REFLECTION幻舞少女之剑》为原点，发展出全新「BLUE REFLECTIONPROJECT」而推出的电视动画。新的主角为积极且开朗、无法放任有问难的人不管的平原阳樱莉（CV：千菅春香），以及笨拙、不懂该如何与人相处的羽成琉夏（CV：石见舞菜香），宛如对比的两名少女相遇，让她们自己与世界都逐渐改变。

In the story, the seasons have changed and it will soon be the second spring. Tatsuya and Miyuki have finished their first year at First Magic High School and are on their spring break. The two go to their villa on the Ogasawara Island archipelago. After only a small moment of peace a lone young woman named Kokoa appears before them. She has abandoned the Naval base and she tells Tatsuya her one wish.