Jiang Sui Sui, a thousand-year-old ginseng spirit, fails to ascend to immortality. Her master tells her that she has unresolved debts of gratitude in the human world, and assigns her the task of curing Gu Jiushi's infertility. Jiang Sui Sui mistakenly believes that she must bear a child for Gu Jiushi in order to ascend, so she descends to the human realm to offer her help. However, she is mistaken for Gu Jiushi's fiancée and is warmly invited into his home by his grandmother. Unintentionally, she cures the family's illnesses and becomes the beloved "pet" of the household. Over time, Gu Jiushi also falls for her. But when his true fiancée arrives, Jiang Sui Sui's true identity is exposed.
