"..No matter how strong a boulder is, it's dead, while no matter how weak an egg is, it's alive. As time passes, a boulder will break, and become sand, but someday, a chick will hatch from an egg and step on that sand.." And this is why Bridal Mask is a masterpiece.
If this is the first historical drama experience you plan to binge-watch, better watch other great historical dramas first. Hwarang is inclined to romance and comedy genre.
This is the only drama whose setting is a prison cell. May anyone suggest?