Wizard of Arsenia 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

An average high school student was summoned to the Arsenia continent by the will of Reyard the Red Dragon. In order to get back home, he became a mage and needed to gather the pieces of the dragon heart. He met various friends to join his company as he journeyed throughout the continent.