Ai nicknamed Love by her friends and family is a happy young girl with bright red hair and eyes who on her 13th birthday is told by her two older sisters Hoshi and Hana that she and the women of her family are witches. She loves her twin brother Yuu deeply in a way that soon turns out to be more than simply sibling love. She decides to become a witch so that she can funfill his lifelong wish of seeing magic and also cure him of his deadly illness. However to become a witch she must sacrifice her most beloved thing. That thing is Yuu.