Jaro is a pegasus knight. He joins the force part way through battle 32 which takes place in Moun. For the first part of the battle Jaro works with the devils and fights the Force, however during the battle he has a change of heart and decides to join the force. Since Jaro has wings his movement is pretty good. He also has relatively high attack and HP.
Post-Promotion: Pegasus Knight (PGNT)