Assigned to Earth to deal with the League Militaire, Fuala used repeated executions by the guillotine to spread fear among the Zanscare Empire's enemies. In a notable instance, after her subordinate Cronicle Asher captured the League Militaire officer Oi Nyung, Fuala had him executed live on air.
Eventually, Fuala's increasingly unhinged and brutal behavior caused her to come under fire from her superiors, who ordered her to go to the Arti Gibraltir space port return to space. Along the way, Fuala encountered several League Militaire supporters including Suzy and Uso. Not knowing who she is at first, they eventually find out who she really is once they're at Arti Gibraltir.
In space, Fuala was sentenced to exile by Tassilo Vago, who ejected her into space with three days worth of oxygen. However, Tassilo secretly recovered her and recruited her as his right-hand, giving her the mobile suit Zanneck to use in combat.
Piloting the Zanneck, Fuala, carried out several attacks against the League Militaire. She was later killed by Uso in a duel with him.
Principality of Zeon