There could be the bully character. This is the one who gives Rose a hard time because of her 'teacher pet' status. They might be jealous of the attention Rose gets and try to undermine her in various ways, like spreading rumors or trying to make her look bad in front of the class.
Then there are the friends of Rose. They could be a group of students who support Rose through all the drama. They might not fully understand why the teacher has such a special bond with Rose, but they accept it and stand by her side. In some fanfictions, these friends also have their own character arcs, like learning to be more confident or standing up to the bully together with Rose.
There could be a little fairy who is friends with the rose. The fairy could help the beast understand the language of the plants in the garden where the rose is, so that he can better communicate with the rose.
There could be a mysterious wizard. This wizard might be the one who sets the miracle in motion for Rose. He could be an old and wise figure, guiding Rose through the strange new experiences that come with the miracle.
One common theme could be the special bond between the teacher and the 'pet' student, Rose. It might explore how this relationship affects Rose's growth in the academic or personal realm. For example, the teacher could inspire Rose to pursue a particular subject more passionately.
Besides Rose, there might be a family member, like her older brother who is also part of the court. He could be initially against her leaving but later comes to understand her decision. There could also be a court jester who, in his own strange way, helps Rose see the absurdity of staying in a place where the love has died. And of course, there could be servants in the court who have witnessed Rose's relationship from the sidelines and may have some insights or stories to share about what led to the love fading.
I'm not sure as I haven't read the story in detail, but there could be her family members like her parents or siblings.
The teacher of Fighting Rose was called "Black Rose". She was an extremely powerful fighter and also a mysterious figure. Black Rose used to be a bar owner, but she lost her husband and daughter in an accident. She decided to become a fighter and use her own strength to protect herself and the people around her. In Fighting Rose, Black Rose used her experience and skills to teach the students how to become true fighters. Her existence was not only a teacher, but also a mentor and mentor to help students grow and improve. At the same time, Black Rose was also a very charismatic character. Her mysteriousness and unpredictability filled the students with curiosity and awe.
Characters who have complex personalities are also popular in 'rose red fanfiction'. These are the ones who are not just one - dimensional. They may have a dark side and a good side, and their internal struggles between different aspects of their personalities can create really engaging stories. So, these kinds of characters often become fan favorites in the 'rose red' fanfiction world.
The main characters are surely the dragon and the rose. But depending on the nature of the fanfiction, there could be side characters. For instance, if it's set in a medieval - like fantasy world, there could be knights who are either trying to slay the dragon or protect the rose for some reason. Maybe there are also talking animals that serve as messengers between the dragon and the rose.
Perhaps Rose is a mysterious child with a prophecy attached to her. The wizarding world is on edge about her existence, but Harry, believing in the good in people, adopts her to protect her from those who would use the prophecy for their own evil ends. He becomes her protector and mentor, guiding her through a world full of secrets and danger.
Definitely, Teddy Lupin could be in there. He could be a cool older cousin - like figure to Rose, showing her different aspects of the wizarding world that she might not have known. Then there's Astoria Greengrass, Scorpius's mother. Her backstory and how it affects the couple's relationship can be explored. And Blaise Zabini could be a side character, perhaps involved in some of the social events that Rose and Scorpius attend as a married couple.