As seen in Season 1, Louise is an AEU exchange aeronautics student in Japan and the girlfriend of Saji Crossroad.In Season 2, she becomes a soldier and financier to the A-Laws and the Innovators.After the series, Louise retires from her duties as a soldier and decides to live the rest of her life with Saji, as seen in Mobile Suit Gundam 00 The Movie: A wakening of the Trailblazer.
She's not above manipulating, whining, and complaining about her issues until people around her caves into her demands.
She's the sort of person that knows what she wants and it was she that started a relationship with Saji.
Louise easily gets jealous if Saji makes contact with other women.
After the traumatic incident with Team Trinity, she physically suffers from GN T particle poisoning and goes through painful episodes of nausea, shaking, and severe headaches.
Mentally, the sight of a Gundam causes high anxiety and anger.
She desires revenge against Celestial Being (CB), believing they're responsible for killing her parents.
In between the 4 years (between season 1 and season 2), she has since become distant, depressed, angry, moody, and experiences high anxiety.
She has been observed frantically taking an unspecified medication whenever having psychotic episodes.
At other times when she is in control of her emotions, she appears calm, almost to the point of apathy and respectful, almost to the point of subservience.
The Innovators manipulated her past experiences to convince her to devote her life to destroying those that resist unity with the ESF.
It was because of that, she developed a strong sense of justice, dark justice, believing in killing people for the sake of future peace.