Centered on the core theme of time and threaded by dance, this mapping tells the story of Hengyang`s century-old memories and future aspirations through the constant transformation and rebirth of a building. It is not a simple collage of scenes, but an urban narrative driven by light art. Opening with a small bell as the guide throughout the mapping, it leads us through a time corridor constructed by images: old streets, film reels, shop windows, vintage stages, a running couple in love, steam trains, and soaring wild geese. Each segment is propelled by emotion, transitioning naturally without fragmentation. The middle part of the mapping focuses on the city`s vitality. From the modern feel of deconstructed architecture to the relaxed and sweet moments of everyday life, then to the passion of the Hunan Football Super League and the cyberpunk future of spaceships, Hengyang`s contemporary spirit is amplified in light and shadow: young, vibrant, creative, yet always retaining the warmth of daily life. Finally, the frame rises into the cosmos, concluding with the grand vision of Zhu Rong`s descent. It merges Hengyang`s cultural roots and future imagination into one amid the interplay of light and fire. Dragon dances, opera stages, prayers for fortune, prosperity and longevity, plus the fireworks of the 2026 New Year`s Eve countdown, push the mapping to its emotional climax. This is not a story about what a city was, but what a city is becoming.