The crazy killer carried out killings in Baihu, Suzaku, Xuanwu and even the main city of Qinglong City. The judge representing justice pursued all the way, and finally got a clue at a small inn on the road to Qinglong City, but the two girls the clue pointed to seemed innocent. Due to a strange combination of circumstances, they go together to Qinglong City. What story will happen there...