Ar tonelico Qoga: Knell of Ar Ciel is a role-playing game developed by Gust for the PlayStation 3. It is the third and final installment in the Ar Tonelico series and takes place in the third tower of Ar Ciel, in the Reyvateil-ruled country of Clustania, located in an area known as Sol Cluster.
Set around two and a half years after the events of Ar tonelico 2: Melody of Metafalica, Aoto, a young man from the town of Blue Canyon Hamelt, stumbles across a mysterious young woman named Saki who has no idea who she is or why the Clustania and Archia governments want her so bad.
