In the year 921, in a world called Ivoire lives Marona, a 13 year old orphaned girl with a special ability to communicate with phantoms. Her ability brings resentment from others, but cheerful Marona is undeterred. Marona believes in her parent's teaching that people will one day come to like her as long as she stays compassionate and kind.
Marona is a Chroma, a magical mercenary of sorts, in the archipelago world of Ivoire.
Unlike most Chromas, however, Marona possesses the power to summon phantoms and is always accompanied by Ash, her dead parents' former companion as they bid to resolve disputes around the world

In Phantom Brave players will take on the role of Marona to complete missions assigned by the clients. Players are not alone in their quest though as Marona is able to create custom Phantom troops that you manage and control in battle.