Half-Japanese girl of German American father and Japanese mother. 13-years-old. Her father is Carl Wyvern, the professor at North Arkham University. Born and raised in Massachusetts, she migrated to Japan 4 years ago due to her parents' divorce.
Under the guidance of her kunoichi mother, she receives ninjutsu training while living in the village of Iga ninja. She still exchanges mail and the likes with her father, and their relationship is on a very good term. However, she doesn't like to be called with the middle name given by her father, and prefer to be called L instead.
On the other hand, she likes to play around with machines due to the influence of mechanical toys given by her father during her childhood. She invent a mechanical robot whom she personally calls "Fam" in her pastimes, and consider to advance on the robotics field in the future.
Taking account on her particular ability, she was chosen as the pilot of Blue World's cutting edge human-type giant robot, "Synchrotron" to succeed the current Super Steel Regalia, Lawrencium. Even though the form and ability of the robot is quite fiendish, the pilot herself has an extremely ignorant character, and face the battlefield as though it were a game. The code name of her from the Blue World is "Seventh Tail".
"So that guy is the root of all evil? This Seventh Tail will finish it off!"