Kento Ankokuden Cestvs 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.nl fastest updating comic site. The Summary is

54 AD. Cestvs, a young boy and member of the lowest social class, is placed into a training school for slave-boxers. It is here that he begins his journey to defy fate and survive.