Claire has always wanted to open an adventurer shop — the merchant side of the guild, handling items and services for the heroes who take the quests. Using her inheritance, she sets one up, only to learn that operating in town requires guild certification, earned through five separate trials. She sets out with Edward, a swordsman who took up adventuring because of her late father, and Satirius, an elven mage who once traveled alongside him, to complete each trial and earn her license.