Beautiful and mysterious, she is at the center of the conspiracy that nearly cost Chirico his life on Lido. She is many things to many people, and her evolution through various identities changes her from a living weapon to a human being. As "Proto-One," she is the deadly killing machine she was designed to be as the first Melkian Perfect Soldier. As "The Phantom Lady," she is a figure of mystery on the streets of Uoodo City. Chirico later gives her the name "Fyana," and from that point she begins to develop as a person with genuine emotions.  Genetically engineered by the Melkian army, her enhanced fighting abilities make her as deadly as she is captivating. What no one could have foreseen, however, was that when she first awoke in Lido and saw Chirico, her destiny would be forever linked with his. From Lido, she is abducted by the Secret Society and later sent against Chirico in battle. When she meets him face to face for the second time, she feels a strong attractions to him which eventually inspires her to defect from the Secret Society and join him on the run.  Her dependency on the radiation of jijirium for re-energization leads to dangerous conditions when she cannot find appropriate regenerative facilities, but when in top from she is an excellent, refined soldier, highly skilled in many forms of combat.

A century of bloodshed between warring star systems has plunged nearly 200 worlds into the flames of war. Now, an uneasy truce has settled across the Astragius Galaxy... 
Chirico Cuvie, a special forces powered-armor pilot is suddenly transferred into a unit engaged in a secret and highly illegal mission to steal military secrets - from their own military! Now he's on the run...from his own army! 
Unsure of his loyalties and to cover their own tracks, Chirico is left behind to die in space. Surviving by luck, the renegade is now hunted by both the conspirators and military intelligence. 
He is driven by the haunting image of a mysterious and beautiful woman - the objective of their mission, and his sole clue to unraveling their treacherous scheme. But the conspirators will do anything to preserve their mysterious agenda... 
(Source: AnimeNfo)

She is the wife of seiyu [Hōchū Ōtsuka](https://anilist.co/staff/95337).

She died of sepsis on November 1st, 2014.

Chirico is awoken from cold sleep and separated from Fyana. His attempts to find her come to the attention of a Nextant, the replacement for the Perfect Soldier program. At the same time, the new Pope is to be nominated, and Chirico is religiously considered to be "The Untouchable". With one of the nominees related to the Nextant, Chirico's actions will have far-reaching political ramifications.
 
(Source: Anime News Network)

Released in 1985, this OVA tells a critical part of the story between the TV show's Uoodo and Kummen arcs. Although the TV series covered the Red Shoulders in some detail, we didn't get to see much of Chirico's time there or the people involved, and we get both of those here. 
(Source: mahq.net)

Big Battle is a one-shot OVA set after the climax of the original Votoms storyline, but before the epilogue at the end of the series itself. With the Gilgamesh and Balarant forces still trying to advance their PS programs, Chirico and his old friends are forced into one last gladiatorial battle against a special PS and a formidable land battleship.