Taekwondo Kid is a Manga/Manhwa/Manhua in english language, Drama series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

Ihn Kim is an explosive Taekwondo fighter who can throw brutal kicks, but his opponents don’t take him seriously because he’s held back by all the sparring rules. However, changes are coming in the Taekwondo world that just might give Ihn a fighting chance. Can Ihn beat the people who once mocked him and show everyone that his style of Taekwondo is no joke?