To explore the Abyss, valiant cave raiders called Delvers emerged, and the town of Orth was established at the edge of the Abyss.

Some are treasure hunters looking for Artifacts, while others are explorers determined to unveil the secrets the Abyss hides. Many have challenged the mysterious Abyss, pursuing countless hidden treasures and relics of immense value. It possesses a unique ecosystem, wherein lie the remnants of an ancient, yet advanced, civilization. The vertical hole has a diameter of around 1,000 meters and is at least 20,000 meters deep, with its exact depth being currently unknown. Episode 1 The Abyss is a colossal pit discovered 1,900 years ago around the islands of the southern ocean of Beolusk.