Haru owns a small business that hires out guides for a beginner dungeon. One day, Maya, an amateur swordswoman hailed as the potential savior of the world, enters Haru's shop. Haru is mesmerized by her and forces himself to be her guide. Although Maya doesn't maintain connections after the dungeon is completed, Haru goes to a journey not only to become stronger so he can start a party with her (and changing her views of being a loner), but also to win her heart and spend the rest of his life with her.