Patrick Frater Asia Bureau ChiefKorean TV series have dominated viewing preferences across large parts of Asia for the last decade. But it has taken a high-concept survival drama “Squid Game” to become the first K-drama to rate as Netflix’s top show in the U.S.The nine-part Netflix original involves a group of people from all walks of life who sign up for a series of simple, but utterly lethal games, organized by mysterious hosts in masks and red overalls.