Dark Tides Over Graymist City

On the first day of the Gray Fog Season, dense gray fog blankets Yungang City, reducing visibility to less than fifty meters. The entire city seems wrapped in a gray veil, and the streetlights look especially dim in the mist. Lu Chen stands at the construction site of Xinghai Shopping Center, gazing at the unfinished building before him, a hint of gravity in his eyes.

The coastal city of Yungang includes the old town, a new tech district, and an abandoned industrial zone. Every winter, the three-month-long Gray Fog Season blankets the entire city in thick fog, with visibility below 50 meters. Cases include an influencer found drowned in a locked room, a poisoning at an antique clock shop, jewelry stolen at a cruise ship auction, and a body hidden in the concrete of a cross-sea bridge...