Hairpins were a type of jewelry used to tie up one's hair. In ancient times, it was also used to pin hats on one's hair. Hairpins could be made of gold, silver, jade, bamboo, wood, tortoiseshell, porcelain, bone, teeth, beads, and other materials. Hairpins were an important accessory in ancient China. They symbolized status, gifts, love, and marriage tokens.
It's a story that often revolves around the world of an apothecary. It might include details about the making of medicines, the life of the apothecary, and the various interactions within that particular setting.