The story is set in "Ninghai City", a prefecture-level city on the southern coast. Platform 3 of the local transportation hub "Ninghai Station" is shrouded in sea fog all year round. It is not only an urban transportation node, but also a metaphorical field for the undercurrent of power. The heroine Lin Yan is a deputy section-level cadre in the Comprehensive Planning Section of the Municipal Development and Reform Commission. She comes from an ordinary family. She entered the system based on her professional ability and is in a critical period for career advancement.
