Well, it could potentially be about a reader who is suicidal and then encounters some sort of error - filled fanfiction. Maybe the error in the fanfiction has some sort of impact on the suicidal state of the reader, like it could be a very poorly written or disturbing piece that makes the situation worse, or perhaps it's an error that leads to an unexpected turn that helps the reader in some way.
To develop it into a full - length story, you need to build a connection between the suicidal state of the reader and the error fanfiction. One way could be that the reader starts to correct the errors in the fanfiction in their mind as a form of distraction from their own problems. The more they get into it, the more they start to see parallels between the messed - up world of the fanfiction and their own life. They could then try to rewrite the fanfiction in a way that gives them hope, and this process could be their journey towards overcoming their suicidal tendencies.
It's also possible that the 'sucidal reader' is a misnomer or a very dark take on a character's journey. In general, fanfiction should strive to be more inclusive and positive. Error Sans has a rich universe that can be explored in so many other ways that don't involve such distressing and potentially dangerous themes.
Rather than looking for such fanfiction, you could explore other Error Sans fanfiction that has more positive and uplifting storylines. There are many great works out there that don't involve such distressing themes.
One common element is probably the initial struggle of the suicidal reader. They might be dealing with a lot of emotional pain or past traumas that led them to that state. Kakashi, being the sensei, often comes in as a figure of hope and guidance. Another element could be the development of their relationship. Kakashi might start by being a bit distant or just doing his duty as a sensei, but gradually, a deeper connection forms.
The child may also be shown as being physically weak or frail, as a manifestation of their mental state. Their appearance could be disheveled, and they might avoid eye contact or social interaction. Additionally, their actions could be slow and lethargic, as if they have lost all motivation to do anything. This would help to convey the depth of their despair to the readers.
Well, you can try looking on popular fanfiction websites like Archive of Our Own (AO3). Just search for 'Sucidal Reader Meets Kakashi Sensei' in their search bar and you might find some interesting stories. There are often various tags and filters on these sites that can help you narrow down the results to find exactly what you're looking for.
Well, it could be that the Error character discovers the suicidal child reader. Maybe Error, who is often portrayed as a complex and somewhat chaotic entity in fanfiction, is initially confused by the child's state. Then he might try to understand the reasons behind the suicidal thoughts through his own unique perspective.
Well, it could be a very dark and complex fanfiction. The idea of a suicidal child meeting Error Sans might involve themes of finding hope or a different perspective in a rather strange and fictional encounter. Error Sans, being a character from the Undertale AU, has his own set of characteristics that could potentially interact in an interesting way with the desperate state of the suicidal child in the story.
In a 'suicidal reader meets error fanfiction', perhaps the reader finds themselves in a world full of glitches and errors that represent their own broken state of mind. The error could be a character or an event that forces the reader to confront their suicidal thoughts. For example, they might encounter a situation where their death would cause even more chaos in the already error - filled world, making them realize the impact of their life and potentially changing their perspective on their own worth.