Seoul Station Druid is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Park Sooho returned to Earth after disappearing to another world for a thousand years. During that time, Earth had changed into a world of the survival of the fittest thanks to the appearance of monsters. Druid, the king of the animals, who had managed to survive for a thousand years is now off to conquer the world.