An antique bronze pendant covered in rust connects a dilapidated grocery store in modern Tongwu Village with Qingxi Town during the Wanli era of the Ming Dynasty. Xu He, a debt-ridden young man, accidentally holds the opportunity to shuttle between the two realms. Carrying ordinary modern items, he stages one hilarious adventure after another in ancient times. Spicy strips, flashlights, and calculators all become immortal supreme treasures. He transports cultural goods bi-directionally between ancient and modern times, single-handedly building a cross-space-time business. However, cracks gradually form on the bronze pendant, and the passage between the two realms hides a crisis of extinction. Behind the bustling fireworks business lies bonds across the years and unknown variables.