Magic Fairy Princess

Sen is a school library administrator, responsible for recording the registration of borrowed books and recycling books. However, the school library is a place that is about to be eliminated, and almost no one comes there usually. Mori lived such a peaceful life, but one day he met a girl who had a sad experience. Then one day, the "angel" in the school suddenly approached. From that time on, life became no longer peaceful. Mori felt that something was slowly changing.