9th Class Sword Master: The Guardian of the Sword 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

At the end of the “War of Trust,” that was fought to protect humanity against the forces of “corruption,” Karil MacGavern, a Sword Saint, faces the betrayal of his close friend and emperor, Oliven. Having ultimately killed the emperor, Karil travels back in time to set things right. Now, armed with the power he couldn’t obtain in his previous life, both a sword and magic. He stands at the crossroads of two paths, determined to change the future.
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