Only now does the audience learn the back-story: back in 1999, Monday drove Margaret's father insane with his powers and she was forced to kill her own father. To escape the horrible truth of her patricide, Margaret split herself into three personae: the "memory keeper" Laetitia, the sinful Madlax, and the innocent Margaret herself. Margaret then fuses her three personae back together to undo the ritual she previously performed with Monday, saving the world from insanity. Madlax, who should no longer exist after the fusion, appears and guns down Monday. It becomes apparent that Margaret has once again split herself into three, judging that after twelve years, she no longer has the right to make decisions for her other personae. When everything is said and done, Margaret fully releases Madlax so she can live her life freely and also adopts Laetitia as her younger sister so she won't be alone. Madlax ultimately makes peace with Limelda and they travel together. "Madlax" is set against the backdrop of Gazth-Sonikan war and the first episodes contrast the tranquil Nafrece with the war-torn Gazth-Sonika; later, the story moves completely to the combat zone, focusing on the central characters, such as Limelda Jorg, and their suffering. In an interview, the director Mashimo stated that "[t]he story is about portraying inner struggles of people, while showing what life is like in this place of madness and this other place of peace". Accordingly, the series' title is a portmanteau of two English words, "mad" and "re"lax"ed", mirroring the authors' intention to portray the two extremes of human being. "Madlax" also plays as the story of Margaret Burton's search for her psychological identity. Based on the Mashimo Menu theme titles available to her, Yuki Kajiura has suggested an interpretation that while searching for her memories, Margaret meets the other characters ("Gatekeepers") one after another and learns about the lifestyles ("Gates") they represent. In the end, she finds her own "Gate", which is the new identity that finally replaces the one she lost twelve years ago. According to the director Kōichi Mashimo, he envisioned "Noir" and "Madlax" as part of a trilogy exploring the girls-with-guns genre, and soon after the release of the latter, he confirmed having plans to produce the third installment, which would later become "El Cazador de la Bruja".