In fantasy stories, when the need arises to summon heroes to help fight in their world, they are always humans from the modern world, with no knowledge of magic or fighting, weaklings that must be mastered and prepared to fight or with some other occasional power as well. .

What if the summoned hero? He was a hero from another world, a holy warrior who protected his own world from humanity's greatest evil, someone who already did his part, but now someone else needs him.

Sora, a warrior with great skills, great knowledge and power over magic, mastery of martial arts, humanity fighting monsters and preparing for calamity, the holy warrior returns to fight for humanity in another world, his powers have been weakened but his experience and skills are still intact.