Based on the title, the main characters are likely to be the succubus and the witch.
The title suggests that the succubus and the witch are the main characters. The succubus is often associated with seduction and draining energy in mythology, and the witch with magic. In this side story, they are probably central to the plot, perhaps having their own goals and personalities that drive the story forward.
Obviously, from the title, a succubus and a witch are likely to be main characters.
Since we don't have a lot of information about this'monster girl succubus witch side story', we can only speculate. It could be a story that delves into the personalities and backstories of the succubus and the witch. Maybe the succubus has some ulterior motives while the witch is trying to maintain balance in their world. It could also explore their interactions with other monster girls, such as forming alliances or rivalries. There might be elements of mystery, magic, and perhaps a touch of romance or drama in their relationships.
I'm not sure specifically as it could be a very niche or self - published story. But generally, it might involve the adventures or relationships of a succubus and a witch in a world of monster girls.
The main character is usually a male protagonist who embarks on the journey in the world of monster girls. There are also various monster girl characters, such as the lamia, harpy, and slime girl, who play important roles in the story, either as allies or antagonists depending on the situation.
I'm not sure specifically as it depends on the particular side story. But it could be some popular monster girl characters from the main Monster Girl Encyclopedia, like the lamia or the harpy.
Tamamo is definitely one of the main characters. There might also be other characters that are related to her story, perhaps some other monster girls that she interacts with regularly. But without more in - depth knowledge, it's hard to say exactly who all the main characters are.
Some of the main characters are the various monster girls. Each type of monster girl, like the lamia or the harpy, can be a central character in different side stories. They bring their own personalities and traits to the story.
There is the male protagonist who is often at the center of the story. He interacts with a variety of monster girls. Each monster girl has her own distinct personality. For example, there is a mermaid - like monster girl who is very gentle and kind.
There's the male protagonist who plays a crucial role in interacting with the monster girls. And then there are several monster girl characters like the lamia, who has a snake - like lower body and a very alluring personality. There's also the harpy, a bird - like monster girl with strong flying abilities. These main characters drive the story forward with their relationships and individual story arcs.
I'm not certain as I don't have detailed knowledge of this side story, but it could include some of the other well - known monster girls from the Monster Girl Quest series.