SD, a droid stationed at Ania Solo's junk yard, functioned as both Ania's security detail and her enforcer, responsible for ejecting problematic patrons and safeguarding the premises. During an attempt by Darth Wredd, disguised as Yalta Val, to kill Ania and Sauk, it met its demise. Immediately following its destruction, Gesaw rats started chewing on its broken circuits, diverting the attention of the false Val's henchmen and facilitating Ania and Sauk's getaway.