Many Heroes fought against the powers of destruction and protected the world; years in the future the Heroes disappear and those possessing their powers, called Successors, now have the fate of the world in their hands.

After arriving at Granseed Academy, Nemo gets inducted into the Seven Knights, and meets its unconventional members; Jou Tsurugi, successor to the hero Spike, takes an immediate dislike to the weak-willed Nemo.

Many Heroes fought against the powers of destruction and protected the world; years in the future the Heroes disappear and those possessing their powers, called Successors, now have the fate of the world in their hands.

The school prepares 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.