Bittersweet098's question (1)

So I started watching the Japanese version of the anime and couldn't help but notice that the characters are calling each other with their Korean names. I dont think I heard wrongso the names made me hope that the animes events will happen in Korea( hopefully )
What do you guys think? Does anyone have an idea? Cuz I tried searching in Google and it's no use ╥﹏╥.