Ein and her lore (Patreon)

Ein is a genetically enhanced Foxian clone brought to existence on an aquatic planet, Hydron-6 located in a remote region of the Foxian galaxy. It was within a floating cloning facility where the (IOA) Intergalactic Order of Assassins commissioned the Hydronian scientists to create enhanced Foxian clones to turn them into professional hitmen for hire. She was created using the genetic template of Sister Reine but due to further enhancements made to her genetic code, she has a slightly different appearance compared to the progenitor. 

Her most distinguishing feature is hidden inside the thigh strap she's made to wear which hides a bar code tattooed to her inner thigh. It is the list that dates the creation and identification number of her series. She has a fair complexion, long hair that's silvery white, and pale, two-tone eyes. She sometimes likes to style her hair in a downward ponytail. 

Ein's illustrious career as an intergalactic hitman for hire came to an end when Sister Reine armed with a Power Hammer raided the IOA's HQ and brought doom upon its organization and their evil partners on Hydron-6. With the cloning facility permanently destroyed and submerged under the ruthless tides of Hydron-6, Ein who had nowhere to go, decided to follow Sister Reine from then on. 

She eventually became one of the Sisters of Planet Foxy. 

While officially she's not that different from Sister Reine who is a woman of the cloth, one can immediately tell that Ein is cut from a different cloth than the other members of the Foxian clergy. For starters, her choice of words and personality doesn't reflect her office at all. Ein is characterized by a ruthlessly cruel and stern disposition, being indoctrinated by the IOA that trained her to be a hitman, she has a slight homicidal tendencies. 

Seeing as there seemed to be no means for containing those tendencies on Planet Foxy, Sister Reine had Ein put into Cryogenic Sleep within her spaceship until a time would come when such means would be available to her. 

During Sister Reine's time on Planet Urth, she one day spilled a glass of water on her keyboard which deactivated the Cryogenic Sleep chamber Ein was staying in and this has awoken her from a long sleep. 

Sister Reine's efforts on Planet Urth to contain Ein's problematic tendencies continued and she found some success. It was done so by distracting her thoughts with Planet Urth's digital entertainment systems such as Anime and Games, which suppressed her emotions and caused her to have a quieter yet still malicious personality. 

Nowadays, while Ein spends much of her time on Social Media which helps in suppressing her homicidal tendencies, Ein still often contemplates the most violent methods to resolve problems be it in a game or in person. Despite all this, Ein wants to fit into the society on Planet Urth and its rich online culture.

Skills 

Ein was a highly accomplished and powerful assassin who possessed advanced skills in both energy blade combat and telekinesis powers. She still possess the red energy blade she wielded during her days as an intergalactic hitman.