Genwaku No Kodou幻惑の鼓動; 幻惑的鼓动; The Resurgent Reality; Yami no Kodou

Strange things are happening all over town, and Kouichi Amano's nightmares have started again. Several clans have been spurred into action as the past gradually resurfaces. Just what is going on, and how do the Amano brothers fit into the picture?