Mikasa Ackerman is another important character. She is highly skilled in combat and is very protective of Eren. Her loyalty to Eren is a significant part of her character.
I'm not sure as I haven't read it. But it could be a young hero who discovers their connection to the Titans. Maybe there's an old wise man who knows all about the Titans and guides the hero.
There's Angel, who is a central character with his own story arc. He has to face many challenges in this pre - main - story world. Then there are his comrades like Kasugabe. They all have different personalities and motives that drive the story forward. For instance, some are more focused on revenge against the Titans, while others are trying to find a more peaceful coexistence.
Levi is likely one of the main characters as he is a very important figure in the 'Attack on Titan' series. There may also be other characters who are associated with Levi's backstory, such as his comrades from his early days.
It could be the kittens themselves. Maybe there's a lead kitten that has special abilities or a unique backstory related to the Attack on Titan world. For example, it could be a kitten that was experimented on by the same people who created the titans.
Armin could also be a main character. His intelligence and strategic thinking would play a role if Sakura is involved in the fight. He might be the one to figure out how to best utilize Sakura's unique skills and abilities in the battles against the Titans, and they could form a friendship based on mutual respect for each other's capabilities.
The main characters include Eren Yeager. He is a very important character with his determination to fight the Titans. Mikasa Ackerman is also a main character, known for her great combat skills and her loyalty to Eren. Armin Arlert is another key character, being intelligent and often coming up with strategies against the Titans.
Eren might still be one of the main characters. Since he is such a central figure in the main series, it's likely he plays an important role in the short story as well, perhaps in a different situation or with a new aspect of his character explored.
I don't know as I haven't read it. Maybe it has a brave hero as one of the main characters.
In the 'Lost Girls Attack on Titan Light Novel', we can expect to see characters like Ymir. She has a very interesting backstory and her relationship with Historia is quite significant. There may also be other female characters who play important roles in the story, perhaps some new characters that are introduced specifically in the light novel to add more depth to the female - centric stories in the 'Attack on Titan' world.
Eren could definitely be a main character. He could use his Titan -shifting abilities in a unique way during the Halloween - themed events. Maybe he discovers a new power related to the spooky atmosphere. Mikasa would also be a great main character. She could be protecting Eren and the others from any unexpected threats that come with the Halloween setting.