Well, in a 'yandere chara x sans fanfiction', the key is the dynamic between the two characters. Yandere Chara could potentially manipulate situations to be closer to Sans. For example, they might try to isolate Sans from his friends. Sans, on the other hand, might be initially oblivious to Chara's true nature. This kind of fanfiction can be really interesting as it plays on the contrast between Sans' laid - back nature (if we go by his in - game characteristics) and Chara's obsessive tendencies.
Common themes in 'yandere chara x sans fanfiction' include possessiveness, which is a hallmark of the yandere character. Another is the idea of a relationship that is not based on healthy mutual understanding but rather on Chara's one - sided and extreme feelings. There's also often the theme of the 'other' or the outsider. Since Chara is acting in an abnormal way, Sans and those around him might see Chara as an 'other', which can create a lot of tension in the story.
There could be other characters who are trying to stop Chara from eating the human. Maybe a group of friends or family of the human, or some sort of protectors in the world of the fanfic. They would play a crucial role in trying to prevent the dark act from happening.
In yandere x reader fanfics, yanderes usually display intense emotions. Their love for the reader is not the normal kind; it's more of an obsessive love. They may have a dual personality where they can be extremely sweet and loving one moment, but if they feel threatened in their relationship with the reader, they can turn very dangerous and menacing.
Yandere characters in these novels are often extremely possessive. They see the object of their affection as solely belonging to them. For example, they might get angry or even violent if someone else shows interest in their beloved.
One of the well - known yandere characters is Yuno Gasai from 'Future Diary'. She is extremely possessive of her love interest, Yukiteru Amano. Yuno is willing to do anything, including murdering others, to ensure that she is the only one in Yukiteru's life.
Chara Haven Fanfic is fan - made fictional works associated with Chara Haven. Fans write these stories for different reasons. Some want to explore different aspects of the characters they love from Chara Haven. Others might be inspired by the overall setting and want to create their own stories within it. There could be fanfics that are set in an alternate version of the Chara Haven world, with different rules or character traits, which makes it really interesting for both the writers and the readers.
It's not appropriate. While fanfic gives fans creative freedom, there are limits. The idea of cannibalism is a huge no - no in terms of morality and ethics. It can make people feel disgusted and uncomfortable. There are so many other positive and interesting themes that can be explored in fanfic, rather than this extremely dark and inappropriate one.
It often starts with curiosity. They meet in the Underground and are intrigued by each other. As they spend more time together, they start to trust one another. For example, Frisk might show Chara the power of kindness, and Chara might show Frisk some of the secrets of the Underground.