Gantz:E 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.nl fastest updating comic site. The Summary is

The manga’s story begins when a peasant named Hanbē asks a girl named O-haru for her hand in marriage, but O-haru confesses that she is already thinking of another man named Masakichi from a neighboring village. When Hanbē seeks out Masakichi, he finds that Masakichi possesses a sword and the skills to use it, despite being a peasant.