"Lanterns swayed in the night wind, casting mottled shadows. Strangely, no plaque hung above the gate."
This line. This single line does SO much worldbuilding. A vermilion-lacquered mansion with no plaque? That's not a home, that's a statement. This is a place that wants to look impressive but can't quite claim ownership openly. And combined with the fact that our male lead climbs over the wall instead of using the door? The author is painting this picture of someone who exists in the margins of society—wealthy enough to have a private residence, but dangerous enough that he can't walk through the front door.
The atmosphere in these chapters is consistently cold and sharp. Ice crystals on eyelashes, cold wind whirling snowflakes into eddies, words described as "icicles in the dead of winter." The setting isn't just backdrop—it's almost a character itself. The Imperial Prison scene is particularly visceral: "Eerie wails mixed with the scent of blood drifted out." You can literally smell that place. And then Cui Xiaoqi's feet dangling and trembling? The author keeps grounding us in physical sensation, which makes the world feel lived-in and real.
I also love the contrast between the grand mansion and Cui Xiaoqi's internal monologue about wishing she'd transmigrated into a wealthy household. The author is subtly building this world where transmigration is almost a known concept, where people wonder about these things. The grain shop scene with the old man—"Little girl, you're really early for buying grain!"—adds this warm, everyday texture that balances all the darkness. It's a world that feels complete, not just a stage for the main plot.