R7-D4 was an astromech droid of the R-series who was in service to the Kel Dor Jedi Master Plo Koon throughout the duration of the Clone Wars. Following the destruction of Koon's entire fleet by General Grievous and the dreaded Malevolence, R7 began his role as Koon's copilot within his Delta-7B Aethersprite-class light interceptor, known as the Blade of Dorin. He flew alongside Jedi General Anakin Skywalker and the members of Shadow Squadron on a mission with the objective of destroying the aforementioned warship, preventing its potential destruction of the Kaliida Shoals Medical Center which was located in the Ryndellia system. R7 remained in service to Koon as the conflict progressed, accompanying the Jedi Master during both the First Battle of Felucia and the Battle of Kadavo.