Born the eldest son of the Dragon Palace, Long Yao fears for his crown due to his half-brother Long Teng's rare Ultimate Bone. Desperate, he threatens Long Teng's mother's life to claim the bone. With the Dragon King in retreat and no help in sight, Long Teng is forced to comply. But Long Yao betrays him, taking his mother's life, erasing his memories, and casting him into the mortal world.