Ar tonelico Qoga: Knell of Ar Ciel from NIS America for the Sony PS3 - the final installment of the Ar tonelico series - takes place in Sol Cluster, a kingdom ruled by the mysterious Clustania organization.

Join Aoto, Saki, and Finnel as they fight to save the world from enslavement of the human race.

Ar Ciel, a planet that was once lush with many prosperous inhabitants. The humans of this planet created a new species with the power to convert songs into various energies, Reyvateils, and boasted about their highly advanced civilization.

However, a foolish release of immense energy triggered a global catastrophe that changed the world. The planet was shrouded by deadly clouds, called the Sea of Death. With the loss of the land, only three artificial Towers were left for the people to reside on.

The world of the Third Tower, Sol Cluster, is practically controlled by Reyvateils. The State of Reyvateils who reside in the upper part of the Tower, Clustania, exert their authority over most other nations from the top of the world.

Clustania aims to establish a society that consists only of Reyvateils and 'Purified' human slaves. To achieve that goal, they carry out genocidal campaigns, called Cleansing, upon the human communities that dare to deft them. They literally annihilate cities and towns, turning them to ruins.

Ar tonelico Qoga's battle system contains an exciting new action-oriented control system that makes battles super exciting! Add to that beautiful 3D graphics, multiple story paths, an expanded Cosmosphere system, and all the Song Magic you can handle and you've got the PlayStation 3's most addictive new RPG! Ar tonelico fans will not want to miss this one!