The five-year-old Tianshi Tuanzi came down the mountain to protect Gu Qi'an, the young master of the Gu family who had a special destiny. With a mahogany sword in one hand and a soul-seducing whip in the other, she beats evil spirits and eats up evil spirits. She is fierce and sassy at the same time. Gu Qi'an suffers from Soul Leaving Syndrome, and can only be cured by collecting nine fragments of consciousness. As the Gu family's pet and bodyguard, Tuanzi searches for fragments and solves various supernatural incidents in the city, from luck conspiracy to possession by the mirror demon, from heroic ghosts to the thousand-year-old demon king. She gains family, friendship and fighting partners in adventure after adventure, and ultimately protects her family and heals her brother.