In a game like YGGDRASIL, guilds enjoyed several benefits if they possessed a guild base of castle tier or higher.
One of these was NPCs for base defense.
The NPCs that the Great Underground Tomb of Nazarick could field were undead monsters. These automatically spawning NPCs — or "pop monsters" — had a maximum level of thirty. Even if they were destroyed, after a while they would respawn on their own, at no cost to the guild.
However, players could not customize the AI and appearances of these "pop" NPCs.
As such, they were hardly useful in deterring intruders, who were universally players.
There was also another type of NPC; the ones designed from the ground up to their makers' satisfaction. If a guild possessed a castle-grade guild base, the owning guild would be allowed seven hundred levels to be distributed between any number of NPCs they wanted.
Because the highest level in YGGDRASIL was one hundred, by those stipulations, a guild could make five level one hundred NPCs and four level fifty NPCs, or any combination thereof.
When designing an original NPC, one could customize weaponry and other equipment in addition to clothing and appearances. As a result, one could create NPCs that were far stronger than the automatic spawns and place them in key locations.
Of course, not every NPC had to be designed for battle. A certain guild which called themselves the "Kitty Kingdom" fielded no NPCs other than cats or cat-related creatures.
In this way, each guild could freely determine their unique style.
"Umu."
Momonga placed his thumb on his chin, and looked at the butler and maids who were bowing to him. Momonga typically used teleportation magic to move through the various rooms, so he had not had many chances to come this way. Looking at the staff filled him with nostalgia.
He reached his hand out and touched an invisible menu, opening a page that only guild members could see. Then, he selected an option from several choices. As he did so, the names of the butlers and maids appeared over their heads.
"I see. So that's what they were called."
Momonga laughed softly, at himself for forgetting their names, and also because of the fond memories they brought up in him. There had been quite a few arguments between his colleagues when they had chosen names for the NPCs.
The butler — Sebas's — design was that of a house steward.
The six maids beside him were combat maids loyal to Sebas. Together, they were called the "Pleiades." In addition to these maids, Sebas was also in charge of the Tomb's manservants.
The text box for Sebas contained more detailed information, but Momonga did not feel like reading it. The servers would shut down soon and he had to be somewhere before then.
As an aside, all the NPCs apart from the maids were also very well fleshed-out. This was because the guild members were all fans of complex backstories and details. Many of the guild members were artists and programmers, and a game like this which emphasised the customization of appearances — allowing them to indulge their desire to create and design — was a godsend to them.
Originally, Sebas and the combat maids were intended to be a last line of defense against invaders. However, if enemy players could penetrate this deeply into the tomb, they would be able to handily defeat Sebas and the maids, so they were little more than speedbumps to buy time. However, no player had ever made it this far, so they had been waiting here for orders.