Cetus was one of the Orion Battalion members dispatched in search of the remaining Zodiac Court Astrals. Though since reuniting with her sister Aquarius, learning of Aquarius's loyalty to the Zodiac Court, and finding herself unwilling to sell her sister and her allies out to the Argo Navis Hegemony, Cetus finds she has no choice but to switch sides. Needless to say, Orion's more loyal soldiers like Ursa (pictured) are not going to make it easy.