The human girl Sui Sui was raised since childhood by five extraordinarily gifted grandfathers. Learning that her eldest grandfather was about to undergo his heavenly tribulation, she took three wooden plaques and ventured out of the mountains alone to search for the older brothers and sisters she had never met. Along the way, relying on her innate divine strength and the skills taught by her grandfathers, she resolved the demon city crisis, uncovered the chamber of commerce's hidden secrets, and successively found Cang Yao, the Demon Emperor of the Northern Territory; Bai Li, the Lord of White Moon City; and Chi Heng, the artifact-refining master. As the crimson moon drew near, the family members scattered across various regions remembered their pact once more, and a homecoming journey spanning the demon realm began.