Her backstory and the mystery surrounding her past also contribute. Writers can explore what led her to be where she is in the game, her relationship with Asgore, and how she dealt with the difficult decisions she had to make. It gives a lot of room for creativity in fanfics.
Toriel is a complex character. Despite her kindness, she has her own flaws and moments of weakness. This complexity makes her interesting to write about. Fanfic writers can explore how she overcomes her weaknesses, grows as a character, and how her relationships with others evolve.
One common theme is redemption. Since Asriel has had a rather tragic past, many fanfics focus on him finding a way to redeem himself through his relationship with Toriel. For example, in some fanfics, he tries to make up for the wrongs he has done in the past by protecting the Underground in his own way, with Toriel's guidance.
There are many great Toriel fanfics that focus on her kind and motherly nature. For example, some might explore her relationship with the other characters in a heartwarming way. You could look for ones where she imparts wisdom to the protagonist or helps in the rebuilding of the Underground.
Chloe Price is a popular character for fanfics because of her complex personality. She has a rebellious side which makes her interesting. She's not afraid to break the rules and go against the norm, which gives writers a lot of material to work with when creating stories.
Hermione's intelligence is a major factor. She's always the one with the answers in the books, and fanfic writers can explore her using that intelligence in different situations, like solving new magical problems.
Cullen is a popular character for fanfics because he has a complex backstory. His past experiences, like his time in the templars, give a lot of material for writers to explore. Writers can delve into his redemption arc and how he overcomes his past traumas.
In Toriel fanfic, she is often depicted as extremely kind. For example, she might be shown taking in and caring for lost or injured creatures. She is also usually portrayed as very motherly, like in the official game. She may be written as having a strong sense of justice, not allowing any harm to come to the innocent.
Her mysterious past. Emily has a complex backstory as an Interpol agent, which gives fanfic writers a lot to work with. They can create stories exploring her time before joining the BAU and the secrets she might be hiding.
A sans x toriel fanfic is unique because it allows for a different kind of emotional exploration. Sans is usually seen as a bit of a joker and toriel as a nurturing figure. In these fanfics, we can see how their emotions towards each other develop, whether it's friendship, something more romantic, or a complex mix of both. It's also unique in how it can incorporate the lore of the game in new and interesting ways. The fanfic writers can play with the magic and the rules of the Underground to create scenarios that are specific to their relationship.
Well, many 'Undertale Asriel x Toriel' fanfics are great at building a rich emotional world. They can make you feel the warmth of their connection, whether it's through their shared memories or their current interactions. Also, these fanfics often stay true to the unique atmosphere of the Undertale game, which is really appealing. For example, they might use the game's themes of mercy and determination in the storylines. And the creativity in how the writers depict their relationship, like how they communicate or support each other, is also a wonderful aspect.
Another theme could be Toriel's wisdom. Fanfics could show how she imparts her knowledge and experience to those around her, whether it's about the history of the Underground or how to deal with difficult situations. This can be a really interesting theme to explore in fanfics.