On her first day of adventuring, the priestess joins three other new adventurers on a quest to save some girls who were kidnapped by goblins. Despite being one of the weakest monsters around, the adventurers fall for traps that the goblins set.

The Goblin Slayer is a silver-ranked adventurer covered in armor from head to toe. The Goblin Slayer never accepted any quests from the Adventurers' Guild other than quests to slay goblins so he was perceived as strange by the other guild members.

The High Elf Archer, Dwarf Shaman, and Lizardman Priest come to see Goblin Slayer. They tell him of a demon lord that's revived with the intent to destroy the world, and they ask for Goblin Slayer's help.

Goblin Slayer and his companions enter some ancient ruins that had been taken over by the demon lords' minions. Goblin Slayer works together with the High Elf Archer and the others to slay the army of goblins, but suddenly, an ogre appears.

Goblin Slayer and the others return from their quest in the ruins. Goblin Slayer spends a few days at Cow Girl's home to recover and then heads to the guild. There, he gives advice to a couple of adventurers and accepts a request from Guild Girl.

Goblin Slayer receives a request from the Sword Maiden, one of the heroes that defeated the Demon Lord. The party heads to the peaceful Water Town, in search of goblins that are reportedly hiding in the sewers.