Well, a lot of 'female chara x sans fanfiction' has the theme of self - discovery. As they interact, both characters learn more about themselves. Also, the theme of facing challenges together is quite common. They support each other through tough times in the stories.
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.
A common theme is the power of friendship. Despite their differences, Chara and Sans can form a bond that helps them both grow. Another theme is the exploration of good and evil. Chara has a complex moral standing, and Sans is often seen as a more morally 'good' character. Their relationship can be used to question what is truly good or evil.
One common theme is redemption. Chara is often portrayed as a character in need of redemption, and Sans is sometimes the one who helps them on that path. Another theme is the exploration of different AUs, as it allows for a lot of creativity in how their relationship can develop.
One common theme is redemption. Since Chara has some dark aspects in the game, many fanfics explore the idea of Chara being redeemed through their relationship with Sans. Another theme is friendship. Despite their differences, they can form an unlikely bond. And there's also the theme of mystery, as both characters have elements of mystery in the original game, and fanfics often expand on that.
In 'cross sans x cross chara fanfic', a common theme is the exploration of the characters' backstories. Since both cross sans and cross chara have their own histories in the Undertale lore, fanfic writers might delve into these backstories to create more depth in their relationship. Another theme can be redemption. If either character has made mistakes in their past, the fic could focus on their journey towards redemption. And of course, there is always the theme of the relationship between the two characters, whether it's a platonic bond or something more complex that develops over the course of the story.
In some fanfictions, sans is often depicted as laid - back and sarcastic, while chara can be shown as complex and mysterious. Their relationship might be one of mutual understanding, especially if the story delves into the deeper lore of the game world they come from.
One common theme is the exploration of an unlikely relationship. Since Papyrus is a very positive and friendly character and Chara has a more complex and somewhat controversial backstory in the Undertale universe, seeing how they interact and form a relationship is often explored. For example, some fanfictions might focus on Papyrus helping Chara to overcome their past traumas.
One common theme is friendship. Their relationship is often shown as a very deep and meaningful friendship that withstands different trials. For example, they might face difficulties in the Underground together and their bond only gets stronger.
Love, of course, is a major theme. The love that develops between male frisk and female chara can be portrayed in different ways. It could be a slow - burning love, starting from a simple attraction and evolving into something deeper. Or it could be a more sudden, passionate love. These different portrayals of love add a lot of variety to the fanfictions in this genre.
One common theme is redemption. Chara might be portrayed as having a troubled past, and Frisk helps him find a better path. Another theme could be growth, as they both grow as characters through their relationship. Also, adventure is a theme, with them going on quests together.