She is a CAST, or android, that functions as a member of the GUARDIANS Investigation Section, a group specializing in intelligence-related missions. For the sake of her special missions, she has been programmed not to exhibit excess emotion.
Lou is actually a mass produced CAST model that exists for a variety of purposes. There have been at least 905 individual models made, but the exact number is classified. Every Lou model is connected through thought and can relay information to any other model at anytime, barring interference.
