Broke artist Su Wan accidentally picks up a magical brush; whatever she draws comes true, but every time she uses it, a corresponding bill is generated. To escape her creditors, she rushes into a mansion and encounters her landlord Bai Qian, whose true form is a nine-tailed fox. Su Wan learns that the magical brush originally belonged to Bai Qian, and the two become intertwined from then on. Not only must Su Wan demand her plagiarized paintings back from her ex-boyfriend Lu Jingxing, but she is also coveted by the mysterious organization Moshi Society due to possessing special spiritual blood. Century-old grievances, past-life mysteries, and a behind-the-scenes demon god emerge one after another. Su Wan and Bai Qian join hands to uncover layers of truth, endure numerous perils, and finally resolve the crisis, opening up a warm and interesting new life.