Dr. Stensen hails from the Sphere of Sabaton, apparently a well-known scientific authority on the world, though questionably ethical at best all the same. Dr. Stensen allied with the Cain family of Garude, supposedly in an attempt to develop a way of surviving "The End", which is to occur in a years time.

Moving into their castle where she conducts further experiments, Stensen uses the deceased souls of other individuals to fuel whatever end goal it is she works towards. With the help of Vane, Dr. Stensen captured Lisil Belial and her brother in their homes, despite attempts by Veyati, Caslin, and Sir Iroas to prevent otherwise.