The Pleiades of the Island Nation is a Manga/Manhwa/Manhua in english language, Fantasy 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 curtain rises on an Oriental Reconquista spin-off of Kato Kotono's "Shoukoku no Altair", set far to the east of Rumeliana is the once peaceful and beautiful island nation of Kusanagi, which has been annexed by the larger country of Cinili and fallen into ruin.