Since I don't know the details of this 'love is magic novel', it's hard to say for sure. However, in many novels with love as a central theme, there are often side characters who either support or oppose the main characters' relationship. There might be a wise old mentor - like figure who guides the lovers, or a jealous rival who tries to break them apart.
I'm not sure as I haven't read the 'love is magic novel' specifically. But typically in a love - themed novel, there would be the two lovers at the center of the story. They could be from different social classes or have different personalities that make their love story more interesting.
Since we have no details about'magic a terrifying love story', the main characters could be any number of things. They might be magical creatures themselves, like a vampire and a witch, and their love is complicated by the terrifying nature of their own magical existences. Or perhaps it's a human who discovers a magical object that leads to a love story filled with fear and wonder as they interact with the magic and the person they come to love through it.
I don't know for sure since we don't have more details about this 'the magic novel'. But usually in a magic novel, there could be a young apprentice who is learning magic. There might also be an old and wise wizard or witch as a mentor figure.
I don't have enough information to say who the main characters are in the 'as if by magic novel'. It could be a young protagonist, perhaps a girl or a boy, who is at the center of the magical events.
I'm not entirely sure as it's a fanfic, but it could feature Harry Potter himself still as a central figure. Maybe he has new relationships with characters who are also deeply in love with magic.
Well, it's likely that the students like Arnold, Carlos, and the others are main characters in Magic School Bus Love Stories. Ms. Frizzle also plays a crucial role. Their relationships with each other and any potential romantic interests among them would be central to the love stories. For instance, perhaps Arnold has a secret crush on one of his classmates and that could be a part of the story.
One of the main characters might be a female magic knight, let's call her Lily. She has a special connection to nature - based magic and uses her powers to heal as well as fight. She is often the voice of reason among the group of knights. Another main character could be a young and impulsive knight named Tom. He is full of energy and enthusiasm, but sometimes his impulsiveness gets him into trouble. Together, they form a core group of characters in the Magic Knight Novel.
The main character is of course the Magic Emperor himself. He is a very determined and talented mage.
Rincewind is one of the main characters. He is often in the middle of the action, whether he likes it or not. Another is Twoflower, who is an important figure in the story.
Often, there is a female protagonist, say, Emma. She could be a magic user who discovers she has special powers and is the key to unlocking the secrets of the magic city. She has to deal with political intrigue within the city's magical society, as well as face external threats. The story would then revolve around her journey of self - discovery and her attempts to protect the city.
Emily is one of the main characters. She's a girl who gets thrust into the magical world and has to adapt quickly. Another important character is Void. He's a powerful and somewhat mysterious figure in the story.