Twenty years ago, an abnormal celestial phenomenon resembling an aurora appeared simultaneously above major cities around the world. It was called the “Arrival of the Great Source.” From then on, energy particles known as “Source Matter” permeated the air. After coming into contact with high concentrations of Source Matter, some people underwent genetic mutations that activated special organs or metabolic systems, enabling them to absorb and transform Source Matter. These people became known as “Awakened.” Preparations made by Awakened using special formulas and rare natural treasures, which granted people supernatural abilities, came to be known as Secret Potions.