The mysterious characters are often popular in 'Moments in Love Fanfiction'. These are the ones who have a hidden past or a secret identity. Maybe they are an artist who hides their work from the world, or a person with a troubled family history. Their mystery draws the other characters in, and the readers are also intrigued to find out more about them as the story unfolds.
In some 'Moments in Love Fanfiction', the characters who are outsiders or new to the group can be very popular. They bring in a fresh perspective and often stir things up in the relationship dynamics. For example, a new student in school who catches the eye of one of the main characters and creates a bit of a love triangle. And of course, the parents or guardians of the main characters can also be important and popular, as they can either support or oppose the relationship.
The love interests themselves are also popular characters. They each bring something different to the story. One might be the brooding, mysterious type, while the other could be the outgoing and charming one. Their different personalities create the drama and the allure in the 'love and love again' scenarios.
I'm not sure specifically as I haven't read the 'Moments of Love Novel'. But generally, in a love novel, there would be the two protagonists who are in love. There might also be friends or family members who play important roles in either supporting or creating obstacles in their relationship.
Obviously, Sherlock Holmes himself is a central character. His complex personality makes it interesting to see him in a romantic context. He's often portrayed as initially cold and distant but gradually warming up to love.
I'm not entirely sure as it depends on the specific fanfiction community. But perhaps there are two main protagonists who are often the center of the love stories, like a charming young man and an intelligent young woman.
One popular character type is the powerful wizard. They often use their magic to woo their love interests and protect them. Another is the fairy princess. She brings a touch of ethereal beauty and magic to the love story. Also, the brooding vampire is quite common. His dark and mysterious nature adds an element of danger and allure to the romance.
Monika is often a popular character. Her strong leadership in the club and her complex personality make her a central figure in many fanfictions. Writers like to explore her thoughts and feelings more deeply, especially in relation to her love interests.
Often, the main character is someone who has been through a tough relationship in the past. It could be a strong - willed female character like Emma. She has her heart broken by a cheating ex - boyfriend and is very hesitant to love again at the start of the fanfiction. Another popular type of character is the mysterious male lead, like Alex. He seems cold on the outside but has a warm heart and is the one who helps the main character dare to love again.
Chara is a popular character in undertale love and hate fanfiction. Their complex personality, which can be seen as both loving (towards certain things or people) and hateful (in some of their more extreme actions), makes them an interesting subject. Toriel is also common, as her motherly love can be contrasted with the hate some characters might feel towards her due to her past actions or decisions. And Asgore, with his role as the king and his actions in the game, is often part of love and hate relationships in fanfiction.
Jinmi and Xufeng are definitely the most popular. Their complex relationship, full of love, betrayal, and redemption, makes them the center of most fanfictions. Their story has so many emotional twists and turns that it's easy for fans to create different versions of their relationship in fanfiction.
There's also Amber. She's a character that can bring a lot of drama and fun to the stories. Her outgoing and sometimes catty personality gives writers a lot of material to work with. Whether she's causing trouble between potential couples or having her own relationship issues, she's often a central figure in many fanfictions.