Erza decides to take on the mission alone. Her assignment is to investigate the disappearance of several women from a nearby village. As she follows the trail of clues, she discovers that she must infiltrate a goblin village, whose inhabitants are known for their strong interest in human women. To enter the village without arousing suspicion, Erza uses a magical charm she purchased from a traveling merchant. Its magic makes the goblins perceive her as someone else, allowing her to move freely through the village without revealing her true identity. Soon after arriving, Elsa is approached by several goblins, who show a keen interest in her. Choosing to play along in order to avoid raising suspicion, she allows them to guide her to the village tavern, where travelers and visitors spend the night.
However, while she is asleep, the charm suddenly activates and produces an unexpected effect. As a result, Elsa finds herself unable to return to her original appearance.
She soon realizes that the charm was actually a counterfeit. Instead of concealing her identity as intended, the false magical item causes the goblins to perceive her as a human prostitute.
Worse still, the charm's magic suppresses her strength and abilities, leaving her unable to rely on her usual powers.
Trapped in the goblin village without her abilities, Elsa must find a way to escape before it is too late.