In a novel like this, the main character would likely be the overlord himself. He would be a complex figure, with his own motives for the massacre, whether it's power - hungry, revenge - driven or something else. There could also be a hero - type character who rises up against the overlord in the face of the massacre. And then there might be side characters like the overlord's loyal followers or advisers who play a role in either enabling or trying to prevent the massacre.
Since I don't know the exact 'Overlord Massacre Novel', it's hard to say for sure. But typically, there would be the overlord as a main character. There might also be characters who are victims of the massacre, and perhaps some who oppose the overlord and try to stop his reign of terror.
Well, if we assume it's a novel that involves an overlord character and a massacre. It could be a story where the overlord, who is in a position of great power and authority, initiates or is involved in a large - scale massacre for various reasons. Maybe it's part of a war, or to assert dominance over a particular territory or group. The plot might then revolve around the consequences of this massacre, such as how other characters react, whether there are attempts at revenge or justice.
Albedo is also a very important character. She is deeply in love with Ainz and is one of the guardians of the Great Tomb of Nazarick. She is extremely powerful and plays a crucial role in Ainz's plans and the protection of Nazarick.
Since I haven't read it, I can't say for sure. But they could be the people directly involved in the Everett Massacre, like the workers, the law enforcement officers, or the leaders on both sides.
The main characters could be the British soldiers who were involved in the massacre. Also, the colonist protesters who were there on that day.
I don't know since I haven't read it. But they could be survivors of the massacre, or the ones who caused it.
Ainz Ooal Gown is the main character. He is a powerful undead wizard who was once a normal gamer in the real world but now finds himself in a new world where he has to use his wits and powers to survive and rule.
Momonga is the main character. He is a powerful wizard in the game world where he gets stuck. Albedo is another important character, a succubus - like being who is extremely loyal to Momonga. Then there's Sebas Tian, a butler - type character with high combat abilities. These characters play crucial roles in driving the story forward.
Ainz Ooal Gown is the main character. He is an undead sorcerer who was transported to the new world along with the Great Tomb of Nazarick.
Ainz Ooal Gown is the main character. He is the powerful overlord in the story.
There are also his subordinates, like Albedo. She is extremely loyal to Ainz and has her own unique charm. Another important character is Demiurge, who is very intelligent and often helps Ainz with his plans. These characters play crucial roles in the development of the story in the 'Overlord short novel'.