Jac was a replicant who escaped Los Angeles with the help of Blade Runner Aahna "Ash" Ashina in 2028. However, Jac returned to the city upon believing in a freedom campaign led by Yotun. However, Jac eventually became disillusioned with the movement.[1]
After Yotun's group captured Ash, Jac freed her and explained that Yotun was reviving unshipped Nexus-8 replicants. Before he could fully explain Yotun's motivations, he was killed by Lelia.[1]