Metaphor: ReFantazio is a Manga/Manhwa/Manhua in english language, Adventure 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 United Kingdom of Euchronia is thrown into chaos following the assassination of its king… Our Hero, the Traveler Will, and his Fairy Companion Gallica, race to Grand Trad to undertake a Special Mission. Discover the bonds that form between eight races across three countries. (MangaPlus)