Late one night, He Xiaoyu vanished from the seventh step at Lingnan University. Yet, his entire class claimed they had never even known him. Only Chen Xing—a youth who plays the lion dance drum—remembers him; Chen bears a blood-red lion-head mark that appeared on his body, linking him to an intangible cultural heritage guardian and a traditional dessert shop owner. His grandfather’s dying words echo in his mind: "The moment the lion dance drum resounds is the moment you come into your own." Joined by Huang Jiajia—a martial arts heir with a "dragon-scale arm"—and Situ Wen—a coding genius and exchange student from HKUST—the three youths band together to battle the "Void Spirits" intent on erasing every memory of the city. A 300-year bloodline legacy and a thrilling 60-episode journey of awakening unfold. It is not superheroes who guard the old city, but three youths who refuse to let go.
