Long Yang is the main protagonist. He lost his memory after being thrown from a cliff and was rescued by Aunt Mei. He works as a water carrier for Long Fu, fetching spring water daily from Dragon Cascade Peak. He possesses extraordinary physical strength despite not being a cultivator. He holds the secret of the demon language, which he learned from a strange creature in the Holy Light Temple alongside Prince Eric. The secret concerns a threat to humanity from the Double Moon Star. He is pursued by multiple factions, including the Soul Shifter Lin Yangming and the mysterious Old Man Tian, who want his secret. He has a recurring dream of a beautiful girl using a Moon Shadow Silk handkerchief to wipe his mouth and calling him "Brother Long Yang." This dream helps him remember his name.
