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.