Based on the EB-08 Reginlaze's frame, the Reginlaze Julia is a prototype high mobility, high output mobile suit developed by Gjallarhorn's new mobile suit research and development team, which accompanied the Outer Lunar Orbit Joint Fleet (aka Arianrhod Fleet). Its mobility is maximized through the use of new leg thruster units at the end of the extended legs, and the addition of thrusters on various body parts.

While the Reginlaze is designed so that any pilot can use it, the Reginlaze Julia sacrificed this aspect for better performance, in fact its performance now directly reflects the skills of the pilot. Thus to operate it, the pilot must be highly skilled. The suit's name was given by Yamazin Toka, a member of the research and development team, and registered formally after Julieta Juris decided to be the test pilot.