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Hello, this is the Creature Encyclopedia. Today, with Kkamanghyung, HittTV, and The Manbulsnim, we will introduce an alien species that has taken over a valley in Gangwon-do. In fact, most people know this species, but it seems that many people think it is a native fish. So, what is this alien species and why did it settle in such a cold valley in Gangwon-do? Let’s find out through the video.