Long ago, Heroes had saved this world. Many Heroes fought against the powers of Destruction and protected the world. Years in the future… The Heroes had disappeared as the years passed and those possessing their powers called Successors now have the fate of the world in their hands. One of the elite Successors known as the Seven Knights is fighting an army of the Destruction when she saves a boy named Nemo. During the battle, Nemo awakens the powers of a Hero even he didn't know about and displays his powers as a Successor. But his Hero is someone who no one knew and no one ever spoke of.
Sophitia attempts to bestow her final "salvation" on the world, becoming an avatar of the god of destruction and wreathing Granseed in flames. But the Seven Knights won't let it happen!
Nemo offers his help when a series of vampire attacks strikes the campus. Shirley refuses his aid, hoping to solve the incident alone... but it turns out the vampire is after Shirley herself!
The school is preparing for its annual festival. While the rest of the students worry about finding a partner for the night's dance, Claire struggles to find a way to be useful to Gareth.
The council orders an all-out offensive against the forces of Physis in Burgot Volcano. Once inside the stronghold, Faria, Nemo, and Shirley come face to face with three new hero successors... who fight in the name of destruction!
While Gareth pursues secrets in Granseed Academy, Amis Germain's plots appear to be on the verge of fruition. As the three students of Granseed struggle against the "synthetic successors"... Nemo makes a confession!
Nemo is laid up after the last battle, with Faria nursing him back to health. While the others speculate about the dark power that overtook Gildan, Nemo and Faria end up tracking down a runaway cat!
Faria, successor to Eunomia of the Seven Knights, saves a boy named Nemo in a village under attack by monsters. Nemo awakens his own successor power during the fight, and what he does stuns even Faria!
After arriving at Granseed Academy, Nemo is inducted into the Seven Knights, and meets its idiosyncratic members. Jou Tsurugi, successor to the hero Spike, takes an immediate dislike to the weak-willed Nemo.