- Story -

One day, Asato Kanami was summoned as a hero in a different world, "Istalia”.

He was told that he was summoned by St. Anna of the Kingdom of Ershnon to stop the battle between demons and humans.

After a year of battle, he finally faces off with the Devil Lord, Rione.

However, when the battle was about to end, suddenly both Rione and Asato received a powerful attack from St. Anna, the summoner.

Although Asato was badly hurt, he survived somehow and was being protected by the Demon Lord.

This is the story of a hero who was betrayed by humans.