I don't know for sure as I haven't read it. But likely the main characters would be those who were important in the main story related to 'the scum of good and evil'. Maybe the protagonist who is caught between the two concepts and has to make difficult choices.
Well, without having read 'the scum of good and evil extra story', it's hard to say precisely. However, extra stories often offer additional perspectives. Maybe it focuses on a particular character from the main story who has a more complex relationship with the concepts of good and evil. It could show how this character's actions in the extra story are influenced by their own moral compass, which might be different from what is considered the norm in the story's world.
I'm not sure exactly who the main characters are without reading the story. But they could be people living in the house, like a family perhaps, with different personalities that represent good and evil.
Obviously, the main characters are the good wolf and the evil wolf.
I'm not sure specifically as there could be many different versions of such a story. But usually, there would be a protagonist who is caught between good and evil, and maybe an antagonist representing one of those forces more strongly.
Jade is one of the main characters. She is a strong and intelligent woman who plays a significant role in the story.
The characters in the movie included the supporting role of a golden-haired monkey with the size of an orangutan and the supporting role of a nouveau riche with a gold necklace, the legendary nouveau riche! The male protagonist, Qin Yi, was the rise of a bad student! The female lead was Yan Ruhua, beautiful, seemingly gentle but actually hot, a top student, and a PhD supervisor. Male supporting character-Zhang Quan, a big guy with a little sidekick. Male supporting character-Xuanyuan Che, a descendant of the Xuanyuan family. Male supporting character-Zhang Tianshi, Zhuang Renyi, an unscrupulous Taoist priest. Male supporting character-Li Yuan, a descendant of the Jiuli clan. Male supporting character-Third Uncle in Green, Jiang Ming, a descendant of the Jiang family. Male supporting character-Wang Tianba, Wang Lei, one of the two tyrants of Yudu University, the son of the Wang Group. Male supporting character-Wang Yuan, a mathematics student at Yudu University. Female supporting character-Little Child, a foodie, cute, and obedient. Female supporting character-Xiao Chen, a sales lady at Xiangshan Villa. Female supporting character-Wu Mei' er. "The Evil Life of a Student Scum" was written by a native of Mount Tonggu. It was a sci-fi/evolutionary novel with space-time and evolutionary elements. It had been completed and could be enjoyed without worry. User recommendation: He's a demon, he's happy, he's happy. I hope you will like this book.
I'm not sure as the name doesn't give away the characters directly. But it could be lovers who are trying to figure out their relationship using the love equations.
The protagonist is one of the main characters. And there are various Servants like Saber, Archer etc. Each Servant has their own distinct personality and abilities that play important roles in the story.
Not having read it, I can only guess. There might be a protagonist among the regular passengers who has to deal with the extra passenger. There could also be a character who is initially hostile to the extra passenger, and another who is more sympathetic. Maybe there is an authority figure like a conductor or a ship captain if it's a story set in a vehicle or on a ship.
Since it's an extra story related to Soma, it's likely to feature the main protagonists from the original game. They might be joined by new characters as well. These new characters could be related to the existing ones in some way, like being from the same organization or having a common goal. However, without more information, it's hard to say exactly who the main characters are. It could also be that some minor characters from the main game get more spotlight in the extra story and become main characters in this new narrative.