After being under the watch and care of the two of the younger Nase family, Akihito Kanbara moves to the city with the Nase's. Being new to this town, Akihito decides its best to just stay close to Mitsuki and Hiroomi Nase. One day while walking home, he comes across this half Youmu that catches his eye, who is identified as Ai Shindou. The two befriend each other and meet often, as Akihito has never had a half Youmu friend, let alone a Youmu friend at all. As things progress, platonic feelings start to turn romantic. And now with a sudden death warrant for Akihito...things get..hectic. *This story takes place before Mirai Kuriyama came along*