Weber was born in an ordinary family, both of his parents were police officers. Influenced by his parents since childhood, Weber was full of interest in detective work. From that moment on, Weber determined to become an excellent police officer. But for various reasons he ended up becoming a detective. One day, a man named Iskandar found him and entrusted him with a major case...
Kotomine Kirei, as the representative of the church, disobeys the gods and pursues pleasure. One day, he found the famous killer Kiritsugu and asked him to fight with him against a sinner who disobeyed the church.