In its expansion west to gain resources, the Europan Imperial Alliance invades the neutral Principality of Gallia, seeking to take control of its vast Ragnite deposits. Their strategic advantage, technological superiority, and military might make opposition nonexistent, so they steamroll through the border of the sleepy principality with ease. As Imperial forces run through his quiet hometown, Welkin Gunther and his younger sister Isara jump into action, banding with the leader of the local militia to push the occupational forces out of the village. Quickly retreating to the Gallian capital, they are organized into a unit with the remnants of the militia, tasked with assisting in repelling the Imperial presence from the country. Though unfamiliar with war, the newly formed Squad Seven must defend their country from annexation. But as the battle rages on through the streets of Gallia, ancient secrets will bring the team closer than they'd ever anticipated.

With the initiation of the Patrian civil war came the creation of half-beast, half-human soldiers—a development of the outnumbered Northerners in a desperate attempt to counter the overwhelming Southern forces. Able to quickly dominate battlefields and achieve victory with ease, the soldiers' godlike abilities earned them the name Incarnates. However, as the war raged on, the Incarnates encountered a problem involving the beasts inside them that they were unable to rectify by ordinary means. Once the war was over, mysteries and accounts of the Incarnates submitting to the misfortune of their war days surfaced. Aware of the horrors they faced during the war, Special Sergeant Major and former captain of the Incarnates Hank Henriette becomes a Beast Hunter—those who take the lives of Incarnates who have succumbed to the issues they experienced on the battlefields. After witnessing her father, a former Incarnate soldier, meet his end at the hands of one such Beast Hunter, Nancy Schaal Bancroft resolves to hunt the man who took her father's life. However, Nancy's eye-opening encounter with the Beast Hunter influences her to instead seek the reason behind her father's death and the Incarnates' problematic existence in society.

Alka is an assassin for the Clan of the Sword. She's on a journey to find the woman Jin Valel, who killed her master Hon without feeling—not unlike how Alka has learned to kill in her work as an assassin. On her journey, Alka encounters three strange women, each a great warrior in her own right and grapples with her slain master's wish that she leaves the life of an assassin behind. (Source: ANN)

In the near future, humanity has taken its first steps towards journeying into the far reaches of the galaxy. Upon doing so they discover a huge race of insectoid aliens known as Space Monsters. These aliens seem dedicated to the eradication of mankind as they near closer and closer to discovering Earth. In response, humanity develops giant fighting robots piloted by hand-picked youth from around the world. Shortly after the discovery of the aliens, Noriko Takaya, the daughter of a famous deceased space captain, enters a training school despite her questionable talents as a pilot. There, she meets her polar opposite, the beautiful and talented Kazumi Amano, and is unexpectedly made to work together with her as they attempt to overcome the trauma of war as well as their own emotions.