Huihui is a three-year-old little girl with two pigtails, a round face, and a cheerful disposition. She was sent down from her mountain cultivation by her master to find her relatives in Jizhou City and pursue her destined opportunities. She is extremely talkative, eats and sleeps a lot, and possesses unique abilities: she can create healing mud balls called "medicine medicine" that have immediate curative effects, and she can sometimes foresee future dangers, such as the landslide that she warned Xiao Qing about. She carries a patched gray satchel containing various small porcelain bottles of elixirs. She claims to be a "Nine Heavens Spirit Child descended to the mortal realm." Despite her young age, she is brave, protective, and sharp-tongued when angered. She forms strong bonds with Xiao Qing and later with Yun Chen, becoming the catalyst for uncovering the child swap and bringing justice. Her innocence and supernatural insights drive the story forward.
