The Hero's party, tasked with defeating the Demon King. Behind a journey that seemed to be progressing smoothly, dissatisfaction had been quietly accumulating.

With those words as the catalyst, the protagonist is exiled from the party. The reason: "A support role with no visible results." However, no one knew. Without his assistance, this party could never have functioned. From the day he was exiled, the gears began to grind to a halt.