Monster no Niku wo Kutte Itara Oui no Tsuita Ken 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

about a prince who fears to get assassinated so he refuses to eat anything prepared in his castle. Instead he ventures out to eat the creatures he hunted himself. Even though they taste horrible, they unknowingly let him absorb their powers. Then he encounters a sword-wielding beauty who knows the potential of eating monster meat and reluctantly becomes her disciple. The path to great power lies in eating monster meat!