I'm in a lot of compliance with the whole saving the world thing with Sifu.

　Kanata is kicked out of the hero's party for such an incomprehensible reason, but when she tries to return to her hometown, she finds herself in the city of Saihate, which is closest to the Demon King's castle.

　The cost of lodging and food is extremely high, and once you step out of the city, you are surrounded by powerful monsters, and your wallet is penniless....

　--And this world is a "world without salvation" destined for destruction.

　However, it was in this desperate situation that Kanata's encounter with Elena, the water spirit, would change the fate of him... well, the fate of the world.

　Kanata has only one mission.

　To save all those who once met a tragic end without anyone knowing about it, and bring this world to its "true ending" of peace!