The Strange Dragon and the Former Choreman of the Heroes Party, Relaxing Slow Life on the New Continent 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

The Demon King has been defeated and peace has returned to the world... But as a result, Theodore, the errand boy of the Hero's party, loses his job. Since money is no object for him, he temporarily considers retiring as an adventurer and enjoying a quiet and carefree life in the countryside, until a letter unexpectedly comes to him from the New World, requesting his assistance with an investigation! He gets ready and leaves at once, but on his way to the New World, he ends up taming a somewhat strange young dragon?! Thus, using the ultimate decision-making, crafting, and taming skills he learned during his time with the former Hero, his slow and pleasant life now begins!