One day Haruhiko comes to his senses in an unfamiliar cave. He, like the people who are there with him, remembers nothing about themselves except their names. When the characters leave the cave, they are taken to an unfamiliar city and offered to become soldiers fighting the monsters that surround it. Since there aren’t many other ways to earn a living in the city, the heroes have to agree. But the members of Haruhiko’s group are so weak that they can barely even afford lodging and food.