Welcome to the world of Ar Tonelico!

This RP world takes place in an alternate universe where there is a Fourth Tower accompanying the three in the canon games. It takes place takes place 100 years after the end of Ar Tonelico III and the restoration of Ar Ciel.

800 years ago, a terrible catastrophe called the Grathnode Inferia nearly destroyed the world of Ar Ciel, covering the land with the Sea of Death (a poisonous cloud formation filled with monsters called Antibodies) and the upper reaches of the sky with the Blastline (a sea of plasma). However, thanks to the work of heroes from a century ago, the land has become inhabitable once more.

In Ar Ciel, technology called Sound Science allowed for the creation of Reyvateils, girls capable of using magic through singing (hereafter referred to as Song Magic). Sound Science also allowed for the construction of three towers, all key to the use of Song Magic and the study of Sound Science. These three towers were created by the country of Sol Ciel. A neighboring country, Sol Cyurio, built a fourth tower after Sol Ciel's second tower. This tower is referred to as the Tower of Lilia (named for the Reyvateil that acts as its administrator), or the Eastern Tower due to its location.

The population is currently divided into two regions: the large, ring-shaped artificial land structure floating around the tower's middle, where the people lived before Ar Ciel was restored, and the newly-colonized area of land around the base of the tower. The land above the ground is referred to as the Arm of Divinity, and still has numerous cities and towns from the time before the land was safe to return to. The capital of the region, Selest, is on the eastern side of the Arm. The population on the ground is smaller than that of the Arm due to having only recently been colonized, but it already has one large city in the form of Archest. There are "shuttles" of sorts running daily that can transport people between the ground and the Arm.

Historically, Sol Cyurio has been a nation of scientists, scholars, and researchers, not warriors. They were supposedly neutral to the conflict between Sol Ciel and its rival Sol Cluster, but behind the scenes they slipped Reyvateils and soldiers to Sol Ciel on occasion. Human and Reyvateil relations have been fairly good over the course of history and in the present day, which is a contrast to Sol Ciel's harsh treatment of Reyvateils. However, even now, some scientists still view Reyvateils as research subjects for the sake of furthering Sound Science.

In the present day, Sol Cyurio appears to be a relatively peaceful place, and for the most part, it is. However, there still exists some conflict. Monsters are an ever-present threat, seemingly coming out of nowhere and growing more destructive with time. Furthermore, sometimes a Reyvateil will go berserk and become incredibly destructive, and no one knows why...

It is time for the story of post-descent Sol Cyurio to unfold.