The great trading city of Ertharia, famed for its wealth as the "treasury of the world," opened its gates wide to guests from all corners of the globe who came for the Starfall Festival. In this world, all devices run on magical energy El, whose influx sharply increases once a year—exactly during the festival—and can be especially strong every seven years. It is then that El can be captured and concentrated in precious stones, which become mighty artifacts. Needless to say that on the eve of this unique night extraordinary personalities gather in the island‑city, and fate seemed to want some of them to come together at the festival in the guild "Oasis." The adventurer guild on the outskirts of Ertharia is run by young engineer Lester Meikraft and his friend Karina, daughter of the influential Veritti family. Childhood friends are helped by Shelly, Lester"s mother, and Oasis manager Nina Lindberg, while the evening guests were street performer Agnes Bula and knight Chelsea Arcot. And so the warm company, fully equipped according to RPG canon, set off for the roof of the city cathedral to watch the Starfall, but at the beginning of the spectacle one of the meteors—i.e., a clump of El—crashed into their tower behind them, opening a secret room. Here the real adventures begin!