As a young girl, Elfin Barclay saw her scientist grandfather murdered by a thug when he refused to enslave people with the help of science. Upon seeing this murder, Elfin went into a fit & tried vainly to fight against the thug who then ordered her to be taken away & put in a prison. Fortunately, a man named Harry rescued her & adopted her as his daughter from that point.

Since that day, Elfin aspired to be a marital-artist, preferring Muay-Thai due to it being for suitable for her physique. With the springiness of her knees & strong back muscles, her attacks can send large men flying. Cooking is also one of her specialties.

Elfin is 18-years-old & she has long brown hair & wears a red cap with a worn-open red jacket. Her jacket is worn over a white short-sleeved T-shirt that is tucked into blue denim short-shorts that are held in place by a brown belt & wears red & white sneakers with black socks.