Nowadays,  there are many types of TV shows around the world.   China,  Hong Kong,  the United States,  the United Kingdom,  as well as Korea,  Japan and Taiwan.   Each has its own unique characteristics,  with a wide range of topics.   Some of them will only be relatable to the local audience,  but some of them can also attract foreign audiences.   I think the choice of topic is unimportant,  because it is the characters themselves that can touch so many people.   Human relationships and emotions,  whether it is part of science fiction,  action or adventure,  are always the same.