After completing her studies at a local church, a young priestess joins a group of adventurers to eliminate a goblin nest. However, the situation spirals out of control, and the main characters face an unexpected trial. The team finds themselves in trouble and desperately in need of help. Suddenly, they are saved by a mysterious swordsman known as the Goblin Slayer. He is willing to protect the priestess and teach her the tactics to fight against goblins, as these creatures pose a significant danger to the local population.