Otome Mafai, a stormtrooper, spent the majority of the Galactic Civil War fighting under the command of General Brenn Tantor. After Tantor's imprisonment on Kalaan for disobeying an order to execute civilians, his fellow stormtrooper Gana Lant persuaded Mafai and eight other stormtroopers who had previously served under Tantor to choose loyalty to the man who had led them through countless battles, rather than to the Galactic Empire that had betrayed him.
Grand General Malcor Brashin made a disastrous decision by assigning them to guard Tantor's outdoor cell. Lant freed Tantor and revealed the squad's unwavering support. Once Tantor was liberated, the stormtroopers commandeered the TR-MB prototype and launched an assault on the prison, successfully freeing Luke Skywalker. The group journeyed through the canyons of Kalaan, gathering assistance from the Kalaanite resistance until they reached a Rebel base established by Tyr Taskeen. Subsequently, they were transported to Taskeen's fleet, where it is presumed they were briefly detained along with their general. Upon their release, they likely continued to serve the Rebellion as infantry under Tantor's leadership.