In the era a hundred generations later, the goddesses have vanished, and the divine instrument Xianhuang is obtained by two musicians, Ling Lun and Chang Xian. The two musicians search across the world for eight materials and create eight musical instruments. Once the eight instruments are completed, they finally make Xianhuang resonate once more. On the day of its reawakening, the immense magical power within the divine artifact surges into the sky, transforming into spirits that manifest in the forms of radiant men, calling themselves the "Guardians of the Eight Tones."