A man reluctantly accepts a legendary dragon that looks like a girl but cannot speak or cooperate, making it difficult to manage. After completing a mission, he receives a valuable Level 3 steel hammer, giving him hope for an upcoming exam. While trying to keep the dragon safe in a dangerous wilderness, she suddenly runs off, forcing him to search frantically. His tense search is interrupted by the appearance of a Level 7 B-rank hunter demanding valuables, leaving him caught between protecting the silent dragon and facing this threat.