This manga is called Yami Tatsujin and its story revolves around a young 19 years old man calling himself Akuma of the Darkness, it takes place a long time ago in a Land called the Land of Bragus which was named after its previous as well as current emperors who were all members of the respected and powerful Brago Family. I hope you enjoy reading it and comments are greatly appreciated as always ! I will post the cover page as well as the summary in the next few days seeing as they are not ready yet.