Rygart is the series' main protagonist at the age of 25. He was born an un-sorcerer, meaning that he cannot use magic, unlike the majority of the worlds populace. Before he left to see Hodr, he worked on a farm with his brother who is also an un-sorcerer, because of this, his father sold all Quartz operated tools and worked with tools without Quartz to make the boys stronger and to keep them from feeling like outcasts. After his father took out loans, Rygart was able to attend Assam military school where he befriended Zess, Hodr, and Sigyn where the four of them were known as "the four problem children of Assam's Military School,", with him being known as the "King of Make-up tests." He hated violence, but he later becomes the pilot of the Delphine, an ancient Golem designed for only an un-sorcerer's use as a Heavy Knight for Krisna. He originally joins to the army and war to protect his brother and friends but later admits he's really fighting to protect Sigyn who he really loves. With the progress of story he understands the hard law of war "Kill or be killed" and after the death of a dear friend and companion in battle that took place before his eyes, he starts to fight in a much more decisive and ruthless.
Later its is reveled that the Sigyn leave Hodr and stay with rygart has she still love rygart and divorced hodr and marry rygart at the end of the manga.