I went to Hallasan, a restaurant in the Gangnam area of Seoul South Korea that specializes in Jeju Island food. I am here to try out their GIANT and very expensive Korean Hairtail or Cutlass fish.

“The fish is a Hairtail Blenny,” he said. “Its body shape is quite unusual for a blenny, and few would pick it for a member of that family. “Due to its odd appearance, we get quite a few ...