I'm not entirely sure without re - reading it specifically, but there may be some minor characters introduced to add more flavor to the story, such as local villagers or new adventurers in the area.
There could be characters related to a new quest or location. For instance, if the party travels to a new town, there might be a guild master there or a mysterious hermit who has some knowledge or item they need. It's also possible that there are antagonists introduced that are unique to this volume, like a powerful mage or a group of bandits with special abilities.
In Konosuba, new characters are often introduced to create more comedic situations or to complicate the lives of the main characters. In volume 5, perhaps there's a character who has an odd obsession or a really strange power. This new character could be a source of both annoyance and help to Kazuma and his friends. Maybe they initially seem like an enemy but turn out to be an ally in the end, or vice versa.
Since I haven't read Konosuba volume 17, I can't say for sure. However, in previous volumes, new characters were often introduced to add more variety to the story. They could be allies or antagonists. In volume 17, new characters might be from a different part of the world in the Konosuba universe, like a powerful wizard from a far - off land or a sneaky thief from a seedy underworld.
Since I haven't read volume 14 in detail, I can't say for sure who the new characters are. But it's possible that there are new members of a guild or organization that Ainz has to deal with. These characters could bring new dynamics to the story, whether they are powerful warriors, cunning mages or something else entirely.
Unfortunately, without having read Danmachi Volume 19 Light Novel in full, it's difficult to name the new characters precisely. But typically, new characters in the series are designed to bring fresh challenges and interactions. They could be powerful adventurers that Bell and his friends have to team up with or compete against, or they could be some strange creatures from the deeper parts of the dungeon with their own motives and behaviors.
Since I haven't read this particular volume, it's hard to say for sure. However, new characters might be introduced to represent different factions in the story's world. For example, they could be from a secret organization or a far - off land that has its own motives and goals, which will then interact with the main character and his group, either helping or hindering their progress.
I'm not entirely sure about all the new characters in volume 14. But sometimes new characters are introduced to either help or hinder the main characters' progress. They could be other adventurers, or perhaps some mysterious figures related to the dungeon's secrets.
I'm not entirely sure which new characters are introduced in Volume 12 specifically. But it's common in the series for new characters to be related to the main character's new adventures or challenges. They could be fellow students if he's at a new school, or locals from a new place he visits.
There might be new adventurers who join Bell's party temporarily or become their rivals. These new characters could bring in new skills and perspectives. Maybe there are also some characters from the background of the dungeon world, like merchants or informants who have important information related to the new challenges in Volume 8.
I don't have the specific information about new characters in Volume 15. But it's possible that there are new characters related to the religious or cultural aspects of the world in the light novel. Maybe there's a new high - ranking priest or a scholar who has knowledge about some long - lost secrets. These new characters would then interact with Ainz and his comrades, creating new storylines and conflicts.
I'm not entirely sure without reading it, but it's possible that no new major characters are introduced and the focus remains on Kazuma, Aqua, Megumin and Darkness.
I'm not entirely sure specifically which new characters are introduced in Volume 6. But it could be characters related to the new areas the Shield Hero explores or those involved in the political or magical aspects of the story.