Yuusha no Tabi no Uragawa de
The hidden truth behind the "promise" of a hero's journey to defeat the Demon King.
"Halfway through the journey, the newly chosen hero is attacked by the Demon King's aide and loses his life."
Priest Louis is secretly entrusted by the Temple Headquarters with the important mission of saving the hero. When he visits an adventurer's inn to request an escort for this dangerous mission, he meets a female swordsman, Arenie, who overwhelms thugs with the strength of the Sword Emperor.
"Please help me... save the hero!" "... Yes?"
And so begins the journey to save the hero, with only two people. They get hurt, help each other, and move forward step by step, gradually closing the distance between them, but each of them has a secret that they cannot tell anyone...
The hero's journey takes place on the stage as a symbol of people's hope. It is not widely known that in the shadows, a pair of swordsmen and priests are lurking. This is another pair of heroes who supported the hero from behind the scenes and played an active role in the shadows of the legend - the beginning of a great and sometimes noble story about their trajectory.
(Source: DRE Novels, translated)