King Asura, the malevolent ruler, is on a quest to acquire the Seven Swords, intending to merge them into a single Holy Sword to dominate all realms. Armed with five of these formidable blades, he relentlessly seeks the last two to fulfill his ambition. These remaining swords are safeguarded by the skilled martial artists Master Weifeng and his protégé Lanzhu. As King Asura's demon warriors hunt for the swords, a complex love triangle unfolds involving Yufang and the enigmatic secrets tied to her past romance.

[Chapter 1: Aconite and the Imp(s)] Officer Hsu is found poisoned and dead in his room one night, next to him stands multiple sing song girls who all look like the long-dead Bai Lin, they chant then vanish. Baffled by the seemingly supernatural nature of the murder, Detective Shi Shen embarks on a journey to the Hidden Town, in hopes that the mysterious practitioner Bai Tsing Luo could help him unearth the truth. [Chapter 2: The night herons long gone] A salt merchant's servant is horrified by the sight of numerous red-eyed mystic herons pecking at her master's body, leaving behind only his bones before they disappear. Soon after arriving at the scene, Detective Shi Shen needs to hurry to Hidden Town for Tsing Luo's cure for a deadly snake venom. Inspired by the case of mystic herons Tsing Luo decides to use the aforementioned birds as remedies. Together with Shi Shen and the newly acquainted Bai Ling, a creature hunter, Tsing Luo sets out to uncover the secrets behind the murder.

Jiang Shang and his companion, Si Buxiang, are exposed as swindlers in a village. Rescued by his brother Shen Gongbao, Jiang learns he’s been chosen as the Executor of Deification—a role Shen desires. After some hesitation, Jiang accepts the mission to end violence, straining their bond. Disillusioned, Shen joins a rival faction, sparking a fierce rivalry over the role of Executor.

The Bianjing of Song Dynasty was prosperous, and there was no chaos in the world, but there were always people who committed evil and committed crimes.

The film is based on a true story, inspired by the touching real-life events of the 1993 (01) class of the Fruit Tree Department at Hebei Agricultural University, whose students took care of their late classmate’s parents for 15 years. After the sudden passing of Li Baoyang in his youth due to illness, his classmates—unrelated by blood but bound by love—make a lasting promise to honor his memory and care for his aging parents as their own, embodying the spirit of “treating others’ elders as one’s own.” Their 15-year journey of devotion is tied together by a bet between Liu Qu’er, a man hardened by life’s harsh realities, and a village chief who still believes in kindness and trust. Though Liu Qu’er ultimately loses the bet, he stands on stage singing, “A promise worth a thousand gold.” This moving story of commitment and compassion became a symbol of “Good Deeds in Hebei,” echoing across the land and warming countless hearts.