Fortin is a character from the Rhea Earth Chapter story arc, serving as the reincarnation of Eluza from the original Gall Force series. She holds the rank of sergeant within the resistance movement known as the Eastern Forces. Her background is marked by profound loss, as she lost her family during the human conflicts that occurred before the emergence of the MME, a powerful non-human entity. This tragedy deeply shaped her personality, making her hardened by the ongoing war. She became cynical and isolated, finding herself unable to trust other people or form emotional bonds with them as a defense against further pain.

Fortin's motivations are rooted in the enmities born from this devastating conflict. She exhibits a strong will and a significant difficulty in letting go of old grudges, a trait she shares with her predecessor Eluza, even when holding onto such feelings leads to dire consequences. This inflexibility is a core aspect of her character early on. Her role in the story is defined by her place as a soldier in the resistance, fighting in a brutal war.

The key relationship that drives her personal development is with a character named Sandy. Through meeting and interacting with Sandy, Fortin gradually begins to relax her defenses. This connection allows her to learn to open herself up to others again, moving past the isolation and cynicism that had defined her for so long. Her development is thus a journey from a state of hardened, distrustful solitude back towards emotional connection and trust, facilitated by her bond with Sandy. No information is available regarding her notable abilities.