The thing that got me very enthusiastic about this manga, and made me finish in one sitting, was: "how will the main character handle grief and trauma?". The characters are well established compared to how short the manga is, and the main cast feel less flat the longer you progress though the story. This makes most of the main characters new acquaintances become more human as the story moves on. A shame it isn't longer since it has the potential to be something bigger.
Look beside your average power fantasy manga, and give this hidden gem a read. It's a short but good experience.