Where Anyone is Possible
A serial-killer whose name is known all over the world. In Japan, it is often designated as "Jack the Ripper" without change. In spite of the frantic investigations of the Scotland Yard, it butchered five women and then disappeared without ever getting caught. Because the true identity of Jack the Ripper has never been made clear, its shape changes in accordance with which Class it is summoned into. In this case, having manifested as an Assassin, it is an aggregation of children who were not allowed to be born.
Noble phantasm: "Maria the Ripper - Holy Mother of Dismemberment" A Noble Phantasm that reproduces the murders of Jack the Ripper. There are three necessary conditions: "the time period must be night", "the opponent must be female" and "mist must occur". She, who was summoned as Assassin, calls herself "Jack the Ripper"; but even her doesn't know if she is really the "true culprit". Although she has memories of killing several women, it is also unknown if they were Jack's victims.