Who are the main characters in 'chronicle of the demon faction novel'?

Well, I'm not extremely familiar with this specific 'chronicle of the demon faction novel'. But generally, a novel about a demon faction might explore the inner workings, hierarchies, and power struggles within the demon group. It could also involve the relationship between the demon faction and other races or groups in its fictional world, like humans or other magical beings.

One of the main characters is Favaro Leone. He's a bit of a rogue character, often getting into trouble but also having a good heart.

There's Fredrick Allan. He is an important character in the story.

I'm not sure specifically as the 'dark chronicle story' isn't a well - known, widely - defined story for me. But it could have a protagonist who is trying to uncover the secrets in this dark world.

Not having read the 'the alexis empire chronicle light novel', we can only make assumptions. There might be a protagonist who is an outsider to the empire but gets drawn into its affairs, perhaps a merchant or a traveler. Or it could be a member of the imperial family who is facing some sort of internal conflict within the empire, like a prince or princess who has to fight for their rightful place on the throne. There could also be a mentor - like figure, an old general or a wise scholar, who guides the main character through the complex situations within the Alexis Empire.

I don't know for sure as I haven't read it. But there's probably an assassin as a main character.

There might be. Demons often have distinct personalities in such novels. Maybe there's a powerful demon lord who is both feared and respected within the faction.

Kvothe is the central figure in the Kingkiller Chronicle. He has a complex personality. There are also other important characters like Denna, a mysterious woman who has a special relationship with Kvothe. Then there are his friends at the University, such as Simmon and Wilem, who play important roles in his adventures.

The Grandfather is one of the main characters. He has a significant role in leading the Faction Paradox and making crucial decisions.

I'm not sure who the main characters in the Squad Game Faction Story are without more information. It could be the leaders of the different factions.