Dos estudiantes son transportados a otro mundo luego de un incidente, donde descubren que tienen nuevas habilidades. Ahora buscan el camino de regreso a la Tierra, pero deben luchar con antiguos amigos convertidos en personas malvadas.

Now stuck in the mysterious End Earth, Souma and Kureha meet a wolf man who explains what the sword, that Souma drew from Kureha, is. After fighting more demons, through several villages, with the wolfman. Souma and Kureha decide to  help seal all the demon gates that are letting the demons through, but is there more to it then just sealing the gates?

Unexpectedly facing Kiriya and Seena on the battle field. Souma and Kureha begin to question everything Shumari has told them. Feeling cornered, Shumari takes Kureha and orders a retreat. Now without a Soul Blade, Souma must find a way to rescue Kureha.

With Souma still missing, Kiriya and the others receive even more bad news. Learning of a mysterious army in the neutral zone, they decide to investigate. Upon arriving, Kiriya and the others are surprised to find the leader of the mysterious army to be none other then Saionji.

While fighting one of Baelgard's four guardians, Xecty, Kiriya is trapped in an underground cavern with her. Elsewhere, Souma and his group meet Elwyn, an old friend of Zero's. Together they stumble upon a lab that turns the contaminated elves  into soldiers. Leading the lab is none other then Hiruda, can Souma fight his friend?

Souma and his group find an igloo in the middle of the desert. Belonging to the ice sorceress Blanc Neige, who turns out to be an old friend of Zero's. Meanwhile, an out of control Xecty escapes from a Baelgard.