In Korean dramas, at dramatic moments, everyone takes turn to sigh, one after another.
The candles in the period dramas are super powerful. Each candle can illuminate more than a standard candela.
The flimsy paper walls are sound proof, at the same time you can holler for an attendant.
Serious thinking means staring at the candle late into the night.
Perseverance (Jewel in the Palace)
No good deeds shall go unpunished.