The main reason is their unique relationship. In the original show, they have this deep, complex bond. Fanfics get to explore that further. For example, they can expand on how Mike helps Eleven understand human emotions better.
These fanfics are appealing because they allow fans to see the characters in a more personal and often more romantic light. We get to see the softer sides of Eleven and Mike. The fanfic can show their relationship growing from friendship to something more. It can also explore how they support each other in non - Upside Down related situations, like dealing with family issues or just normal teenage problems. This gives a more well - rounded view of their relationship compared to what we see in the show sometimes.
The appeal lies in the chemistry between the two characters. In the show, there are already hints of a special connection. Fanfiction just takes it further. Their relationship is a blend of mystery, loyalty, and budding romance which fans love to explore.
I'm not sure specifically as I haven't read that particular fanfic. But generally, a 'Mike x Eleven' fanfic might be about the relationship between Mike and Eleven from the show, with some sort of 'lemon' aspect which could mean a more romantic or fluffy take on their relationship, perhaps with some added cute or endearing scenarios.
The theme of protecting each other also frequently shows up. Mike is always protective of Eleven, and in fanfics, Eleven also uses her powers to safeguard Mike. This mutual protection deepens their relationship in many stories.
Their relationship is appealing in fanfiction because it's a story of young love. Mike was Eleven's first real connection to the outside world, and that's a powerful start. In fanfiction, writers can explore the depth of their feelings, like how Mike is always there to protect Eleven, and Eleven's loyalty to Mike. It's a relationship full of growth, from innocent crushes to deep, abiding love.
The relationship between Mike and Jeremy is often full of potential for interesting stories. Their personalities can be quite different, like Mike might be more brash and Jeremy more reserved. Fanfics can explore how they complement each other.
It's interesting because it allows fans to expand on the character. In the show, Brother Mike might not have had as much screen time as some other characters. Fanfics give the opportunity to flesh him out, give him new storylines, and develop his personality further. For example, exploring his past or his relationships with other PLL characters in a more detailed way.
The relationship between Mike and Nanaba is full of potential. In the fanfic, writers can explore their unspoken chemistry that wasn't fully explored in the original series. It gives fans a chance to see a different side of their characters.
Love and friendship are very common themes. Their relationship is at the core of most fanfics, whether it's about them falling in love or just strengthening their friendship. For example, many fanfics explore how Mike helps Eleven understand emotions like love better.
The relationship between Endou and Aki has potential for a lot of emotional depth. Endou's passionate and determined personality paired with Aki's intelligence and supportiveness can create interesting storylines. Fanfics can explore their relationship development, from friends to something more, which is always engaging.