There's a whole layer of symbolic material running through these chapters that I think deserves attention, because this story is clearly about more than just a princess sneaking around at night.
The most obvious motif is masks—literal and figurative. Li Quan is described as "the universally respected, benevolent Prime Minister," a man who "shunned power, never fought for influence, and carried himself with the aloof grace of a gentleman untouched by worldly ambition." And yet behind closed doors, he displays "ruthless calculation," "vicious expression, the contempt, the cold scheming." The text explicitly calls it "flawless deception" and notes that he "fooled the entire Kingdom of Qian." This isn't just a plot twist—it's the story making a statement about how power operates in this world. The most dangerous people are the ones you never suspect.
Then there's the sword. Xiahou Jin's old sword is kept in a wooden box, and Si Nan's entire nighttime mission is to retrieve it. The sword represents his past—his youth, his martial identity, the man he was before court politics and imperial favor shaped him into whatever he is now. When he tells her to keep it, he's essentially saying: take my past, take whatever's left of it. It's a gesture of trust wrapped in the language of dismissal.
The tea reflection scene is pure symbolic storytelling. Si Nan looks into Li Quan's teacup and sees her own eye reflected back at her. The moment of recognition—"Her heart dropped"—is the story's way of saying: you are seeing yourself in the reflection of evil, and evil is seeing you back. It's a mirror moment that precedes the entire conspiracy unraveling.