The Rebirth Of The Violent Dragon King is a Manga/Manhwa/Manhua in (English/Raw) language, Adventure 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

The human world was devastated by the attack of the Demon Lord. After the Golden Dragon King’s duel with the Demon King, he was reborn as a human being “Kain Rogdai” who has nothing to do with magic. After being reincarnated, in order to get rid of becoming a member of the Rogdai family, a knight family obsessed with sword gods, he tried his best to hide his sword skills and decided to stay in the place of cultivation. Facing the crisis of being expelled because of an unexpected warning…