Main characters ; : (young),
Hōko Kuwashima (adult) : Allison is a pilot of the Roxche air force and daughter of a military officer who died during the war, she was raised in an orphanage along with Wil. An impulsive, daring and somewhat tomboyish girl (not to mention her well-above average gymnastics) who has a talent for getting herself in trouble. Though being in the military, she is not above bending the rules (and the occasional mischief) to help others, and to get things done. Wilhelm becomes the receiving end of her bad sleeping habits on a few occasions when they have to share a single bed out of circumstance. She also has jealousy fits when she sees how close how Benedict and Fiona are to each other, while on her end, she tries so hard to do the same with Wilhelm to no avail. In the second half of the story, Allison gives birth to Lillia with Wil, but the latter had to fake is death and change his name due to becoming a secret agent. She still dates Wil, but has kept his true identity a secret from Lillia. ; : : Allison's childhood friend. A scholar who has the ability to memorize things instantly and also is skilled at firearms. Wil does not share Allison's sense for adventure, but is usually dragged along by her. While Allison is physically more apt and spontaneous than he is, Wilhelm brings in the level-headedness and wits during their adventures. Some time after marrying Allison, Wil is scouted by her father to become a secret agent just like him, thus he fakes his own death and assumes another identity under the alias Travas, with only Allison and a few other individuals knowing the truth about him. ; : : A handsome, flirtatious pilot in the Sou Beil air force who becomes friends with Allison and Wil, and always ready to help them when needed. By Allison and Wil's request, Benedict takes all credit for the discovery of the mural proving the common origin of Sou Beil and Roxche, thus becoming known as a hero. After joining Allison and Wil's effort to help Fiona reclaim the throne of Ikstova, Benedict starts a relationship with her, leading to their marriage. ; : : The sole survivor of the small country of Ikstova's royal family, who decided to leave her secluded life after meeting Allison, Wil and Benedict, assuming her rightful place at Ikstova's throne with their help. She has a great passion for photography. ; : : Lillia is Allison's and Wil's daughter. She is shy of being called by her full name: Lilliane Acacia Corazón Whittington Schultz. She is, as her mother mutters in a monologue, as dense as Wilhelm when it comes to romance. ; : :Son, and one of the fraternal twin children of Carr Benedict and Fiona, and Lillia's closest friend. Looks to form a relationship with Lillia similar to that which Allison and Wil had in their younger days. Being a son of Fiona, he is also the prince of Ikstova, though Lillia is unaware of this and only sees him as a childhood friend. He is worldly and does not really care for his royal heritage, and wishes that he can be like a normal civilian, and not be a subject to political favors among royal families.
Other characters ; : : The old woman at Future House who took care of orphaned children in Roxche, including Wil and Allison. Originally from Sou Beil, her humanitarian efforts on the other side of the river earned her the scorn of her compatriots. As a result of her care, both Allison and Wil show compassion for both sides in the conflict, and can speak the language of Sou Beil. ; : : Daughter of Carr Benedict and Fiona, and Treize's fraternal twin sister, she is the official heir to the throne of Ikstova. Has a pushy and headstrong personality similar to Allison, which she shows even in front of her own parents. She has a sharp tooth at the corner of her mouth that stands out when she talks. ; : : The adopted son of Radia, Travas is a major in the Sou Beil armed forces, stationed in Roxche as a diplomatic liaison. He is involved in a relationship with Allison, who addressed him as her boyfriend. Travas is, in fact, Wilhelm Schultz. He knows of Treize's royal heritage and even greeted him as "Your Highness" behind Lillia's back. ; Ann : She is introduced later in series, and is the right hand woman in Travas' team under the alias Ax. She is talented with the gun, maybe even more so than Major Travas (Wilhelm). Her father was Captain Grantz, who died in a cave-in while facing Wilheim over the mural. Blaming himself for his death, Travas personally hired Ann so that she would have the best position to exact her revenge, for which he did not plan on stopping. Ann was also shocked to learn that Maj. Travas chose "duty" over his family. ; Mathilda (Hilda) : The queen of Sou Beil, she is kindhearted and perceptive. She is lonesome as she does not have many close friends, though Merielle is seen to be one of those few. Treize was chosen as the primary candidate to be Mathilda's fiancé. ; Captain Gratz : Introduced earlier in the series, he is a soldier from Sou Beil. He died trying to thwart Allison, Wil, and Carr Benedict from revealing the mural. His death was caused by the injury Wil inflicted on his shoulder; he ended shooting up at the cave's ceiling and being crushed by the rocks that fell. His daughter is Ann. ==Production==