Baratrum’s Devil 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

18 year old Scott Reaver is an extraordinarily talented street fighter who had an unshakeable pride- that is until an ambush by a mysterious assailant left him covered in wounds and planted a seed of doubt in his own self worth. Having recovered from his injuries, Scott sets out to become a Vindex- an elite mercenary, in the hopes it will lead him down the path to hunting down his assailant. His first obstacle- the rigorous Vindex entry exam.