Raging Raven was born in Aceh, a territory of Indonesia, a place that had already seen years of war prior to her birth. She was captured by soldiers as a young child and was kept in a cage along with many other captured children. The soldiers, mad with the rage of war they've experienced over the years, would beat the children daily, Raven included. The captive children tried to hold on to hope and attempted to cheer each other up by reassuring one another that help would eventually come, all the while barely clinging to life by eating what little scraps of food there were, but this only angered the soldiers, calling them parasites and "shit-eating ravens" and beating them harder. Eventually, the soldiers suddenly left for unknown reasons, leaving the surviving, weak and helpless children to get eaten alive by the birds that inhabited the countryside.
The ravens picked apart the children one at a time but when they came for her, instead they somehow managed to cut her bonds and she was freed. In that moment, she was filled with an uncontrollable rage that smothered her soul. She tore apart the ravens and then pursued the soldiers. When she caught up with them, she waited until nightfall and killed all the soldiers and civilians that they had captured, all the while screaming and cawing. To her, there was no difference.
The girl was later recruited into the Beauty and the Beast Unit by Liquid Ocelot, fitted with a flight suit and MGL-140 grenade launcher and given the "Raging Raven" codename. Ocelot told Raven that killing Solid Snake in battle would allow her to finally make peace with herself and rid herself of all of her inner hatred and rage, and thus Raven was dead-set on destroying Snake.
In 2014, Raging Raven fought in the Middle East, where she, along with several of her unmanned aerial drones, known as Sliders, firebombed a group of local rebels. Upon infiltrating a rebel stronghold, Snake found that the rebels had recovered a piece of one of the drones, and were examining it deep within their underground base, still attempting to flap and fly away. Raven occasionally swooped over the battlefield, dropping bombs on the rebels, although Snake would not fight her until much later in his mission to eliminate Liquid Ocelot.
While in Eastern Europe, Raven was put in charge of the PMC Raven Sword and attacked Snake, Big Mama, and the Paradise Lost Army. Snake and Big Mama attempted to flee from the approaching PMCs, but were cut off while en route by Raging Raven and her Sliders. A massive pursuit and firefight ensued, resulting in numerous PMC and Paradise Lost casualties. Eventually, Liquid Ocelot even went as far as to send his personal troops to help Raven stop the van containing the pyx carrying the corpse of "Big Boss." Despite her heavy weaponry and seemingly endless amount of troops and Gekko, Snake and Big Mama were able to escape from the city before being hit by a stray missile and crashing their motorcycle just outside the city limits. While Snake and Big Mama recovered from an almost head-on collision with a gate and brick wall, Raven took this opportunity to attack Snake inside of a large clock tower called Echo's Beacon.