Here are some plot ideas. First, the adult human could be a scientist. They meet Toriel and start to analyze the magic in the Underground. As they collaborate, they grow closer. Second, the human might be a storyteller. They tell Toriel tales of great heroes and adventures from the surface. Toriel is so captivated that she wants to be part of those stories with the human. Third, the human has a troubled past. Toriel, with her motherly nature, helps the human heal. Through this process, their relationship blossoms. In all these ideas, their relationship can develop in a non - sexual, deep and meaningful way, exploring themes of friendship, understanding and hope.
A fanfic centered around Toriel and a human adult might focus on character development. The human adult could start off as a bit lost or in need of direction, and Toriel could be the one to provide that. Their relationship could be a slow - burn one, starting from initial curiosity to a deep, abiding respect and friendship. The story could also incorporate elements of the Undertale lore, like the magic of the Underground, and how the human and Toriel interact with other characters in that world. It could be a story that shows the power of kindness and connection across different species.
One possible plot could be the human adult getting lost in the Underground and Toriel finding and taking care of them. As they spend time together, they learn about each other's cultures and values. Another plot could be that the human adult has a special ability that Toriel needs to protect the Underground, so they team up. And a third plot could be that the human adult is on a quest to find a way out of the Underground, and Toriel reluctantly helps them, but along the way, they form a strong bond.
One idea could be a story about Toriel teaching the protagonist how to bake her famous cinnamon - butterscotch pie. It could focus on their friendship and the sharing of a cultural tradition within the Underground.
One interesting undertale human adult fanfiction could be about the human character's journey in the underground world after growing up and how they use their adult wisdom to face challenges. For example, they might form deeper relationships with the monster characters based on mutual understanding and respect.
Their relationship can be developed positively through mutual respect. The adult human can respect Toriel's wisdom and her role as a protector in the Underground. Toriel, in turn, can respect the human's different perspective from the surface world. They can also have shared goals, like trying to improve the situation in the Underground or finding a way to coexist peacefully.
A possible idea is to have the human character start a club or organization in the Underground. It could be a book club, a gardening club, or a club focused on exploring the history of both the human and monster worlds. This would allow for interactions between the human and different monsters, and would be a fun and family - friendly fanfiction concept.
One idea could be a story where Fell Sans and Fell Toriel form an unlikely alliance. Maybe they start by just having chance encounters in the Underground, and over time, they realize they share a common goal, like trying to bring some sense of order to the chaotic Underfell world. This could involve them working together to deal with unruly monsters and gradually growing to respect each other.
You can start by checking out Archive of Our Own (AO3). It has a large collection of Undertale fanfics, and you're likely to find some great 'Toriel x Human Male' ones there. Just use the search function and type in the relevant tags.
Fanfictions about Toriel and the reader in Undertale often explore a deep emotional connection. It could be a story of friendship or something more. For example, the reader might enter the Underground and Toriel becomes a guiding figure, protecting and teaching the reader. This relationship can be heart - warming as Toriel has a very motherly nature in the game.
The plot is also crucial. It could explore the unique relationship between a human and a monster in the Undertale universe. Maybe it could involve the human male helping Toriel with some issues in the Underground, or them going on an adventure together. This kind of plot can add depth and interest to the story. And don't forget about the writing style. A vivid and engaging writing style can really bring the story to life, making the reader feel like they are part of the Undertale world.