Ryuu to Yuusha to Haitatsunin Shikaban is a Manga/Manhwa/Manhua in english language, Comedy 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

Bonus chapters that never made it into volumes, infodumps, behind-the-scene stories, new bonus chapters, and much more from "The Dragon, the Hero, and the Courier", a rather strange medieval fantasy manga. This book was self-published by the author with permission from Shueisha.