In the Yin dynasty, the “Swiftwind” Escort Agency made its name delivering takeout by escort. Its young proprietress, Shen Qingluan, had exceptional lightness skills and loved money more than life itself. One snowy night, while delivering soup, she unexpectedly found a gravely injured, amnesiac man with an extraordinarily handsome face. To pay off his debt, she tricked him into signing a contract of indenture, making him the agency's odd-job man, “Gu Daniu.”
After losing his memories, he shed all his icy severity and became a clingy, jealous puppy. He might blow up the kitchen while chopping wood and tending the fire, but his careful dishwashing and heartfelt carvings went straight to her heart. And when his instincts kicked in and he drew his blade to protect her, his commanding presence was impossible to miss. Shen Qingluan was swept up in the sweet romance of this unexpected side of him, yet she couldn't help worrying about the cold traces of Gu Wujiao, the “Living King of Hell” from the Xuanjing Bureau, that surfaced from time to time.
Meanwhile, her friends had their own lively love lives. Gong Sun Yingluo, a master of mechanical inventions, won the sincere affection of a cunning top scholar with a gear-shaped hairpin, while Li Zhu, a runaway bride and holy maiden from the southern frontier, was passionately courted by a battle-hardened general with hot pot and love songs. The three couples' hilarious cohabitation and romantic interactions kept the sweetness coming.
As old schemes quietly closed in and their identities were exposed, the King of Hell, now addicted to playing the puppy, decisively embarked on a “long road to winning back his wife,” determined to keep spoiling her. In the end, all three couples joined forces to put an end to a minor court crisis. In a prosperous Chang'an, grand weddings and the sweetest everyday moments composed a “Swiftwind” love song in which the martial world and the imperial court were merely the backdrop.