In Another World With My Sword

Killed by his best friend, Tsuoma Sadeo is reincarnated to another world. A fantasy world where fantastic creatures coexist with humans. With his indestructible sword and massive mana, he becomes a powerful sword mage. But not all things go well. His summoner is the princess of Straterfall kingdom, one of the kingdoms of his new home world. And she summoned him for a reason.

The great battle between goddesses and demons reached a climax making an avenue for peace but a demon remains and possesses the empress of Latasha, the second most powerful kingdom after Straterfall. The demon works in the shadows to destroy the world once more and so rally dark mages in order to awaken the king of demons 'Agarrat' from the abyss. But a goddess refused to allow things go their way, accepting to work with the princess of Straterfall, Tsuoma is summoned and by mistake Teruki.

Tsuoma and Teruki trained hard inorder to defeat the 'Three' that is the three high demons. Urea, who possessed the empress. Trezona who escaped the abyss before the sealing of the abyss by the goddesses and Duggan, a self acclaimed demon. But will their training be enough and would they have enough time to do so.