No primeiro dia da Sacerdotisa como aventureira, ela se junta a três aventureiros novatos para salvar algumas meninas sequestradas por goblins.

O Matador de Goblins é um aventureiro de prata coberto de armadura dos pés a cabeça. O Matador de Goblins não aceita missões que não sejam para matar goblins, e isso causa estranhamento entre os membros da guilda.

A elfa arqueira, o anão xamã, e o homem-lagarto sacerdote vão visitar o Matador de Goblins. Eles contam para ele de um Demônio Rei que foi revivido com a intenção de destruir o mundo e pedem sua ajuda.

O Matador de Goblins e seus companheiros entram em ruínas antigas que foram tomadas pelos lacaios do Demônio Rei. O Matador de Goblins trabalha com a elfa arqueira e os outros para matar o exército de goblins.

Goblin Slayer and the others return successful from their quest in the ruins. Goblin Slayer spends a few days sleeping at Cow Girl's home to recover and then heads to the guild. There, he gives advice to a couple of adventurers on how to deal with some giant rats and also accepts a request from Guild Girl.

Goblin Slayer and his party receive a request to slay some goblins. The one who sent the request was the Sword Maiden, one of the heroes that defeated the Demon Lord. Goblin Slayer, Priestess, High Elf Archer, Dwarf Shaman, and Lizardman Priest head to Water Town. It's a peaceful, beautiful city, but apparently, there are some scary incidents happening. The party believes that there might be some goblins hiding in the sewers so they head down there as soon as possible.

Goblin Slayer and his party go into the sewers of Water Town to investigate some brutal incidents they think were caused by goblins. When they go down to the sewers, they are immediately attacked by a horde of goblins. Because of the sheer number of goblins, the party has a hard time dealing with them all and then a goblin champion also appears before them...

Goblin Slayer was gravely injured after the battle with the goblin champion. The Priestess and Sword Maiden work together to heal Goblin Slayer with a special ritual. Meanwhile, High Elf Archer and the others investigate the sewers a bit further and encounter a mysterious creature. Due to the creature's abilities, the party heads back up to the surface to regroup with Goblin Slayer and Priestess before they go any further.

The party encounters a giant mirror in the sewers. The mirror, the mysterious creature they encountered, the horde of goblins, and the goblin champion that appeared... Goblin Slayer and the others try to get to the bottom of what's going on. They once again encounter the horde of goblins as well as the goblin champion, which gravely injured Goblin Slayer previously. But Goblin Slayer had a plan to take care of them once and for all...

Goblin Slayer and his party head back to town. The news that the Hero had defeated the Demon Lord is spreading, putting everyone in a celebratory mood. However, Goblin Slayer doesn't seem to care much about the news and continues on with his daily life. On the other hand, it seems that Goblin Slayer is changing ever so slightly through his interactions with his companions...

Goblin Slayer does his usual rounds around the farm and finds a bunch of goblin footprints, and realizes that they're planning to attack the farm that night. Goblin Slayer tries to convince Cow Girl and her uncle to leave, but she refuses to leave, wanting to protect the one place that Goblin Slayer has to come home to. In order to protect the farm Goblin Slayer heads to the guild to make a request...

Enquanto os aventureiros veteranos matam os goblins mais fortes. O Matador de Goblins enfrenta o soberano sozinho, mas é derrotado.