Mahagara, the Destroyer of Darkness, seeks to erase the world! Standing against him is Son Oh-gong, the Prophet of Light, determined to save it! Son Oh-gong and his companions race ahead of Mahagara to gather the Essences of the Five Elements, heading to Ionia, the land of prosperity and science. As the Jade Emperor's Realm and the Realm of Light—once devastated by the war with the Emperor of Darkness—begin to fully reclaim their peace, Son Oh-gong, who has been guarding the Magic Chinese Characters book sealing away Samjang, hears a mysterious voice calling out to him. That voice belongs to none other than Mahagara! Mahagara reveals his name to Son Oh-gong and mentions the Sacred Sage. Soon after, Mahagara casts an evil magic circle upon the Magic Chinese Characters book, and a thunderous roar begins to echo through the skies above the Middle Realm. Startled awake by the nightmarish memory of the past, Son Oh-gong opens his eyes to find himself in Pocula, the capital of Ionia. But he and his friends are met with an unbelievable sight: even though Source City, located right next to Ionia, has been destroyed by a massive explosion, the citizens of Ionia are enjoying a lavish masquerade ball as if nothing happened. Undeterred, Son Oh-gong and his companions move swiftly to track down the whereabouts of the Essence of Water, and at last discover its location. But they soon learn that the Essence of Water is in the hands of Jason—Ionia's Prime Minister and Kres's father…