Thirty years ago, the strongest Queen with Level 28 energy mysteriously died, leaving behind a hidden secret. Years later, two princesses are born into the royal family. The First Princess is hidden inside the castle after her blood shows a mysterious blue reaction, while the Second Princess grows up freely and trains at a powerful academy. As the sisters grow older, the mystery behind the Queen’s death, the First Princess’s power, and the fate of the Four Continents begins to unfold.
