Well, the appeal also has to do with the fanbase's love for shipping. Shipping characters, or pairing them up in romantic or otherwise interesting relationships, is a big part of fan culture. Undertaker and Sebastian have this allure that makes fans want to see them in different situations together, whether it's a love - hate relationship, a true love story, or a partnership based on mutual interests. It's all about exploring the possibilities that the original work didn't fully explore.
Well, for one, Sebastian Stan is a very popular actor. Fans are always curious about what it would be like to meet him in person. Fanfictions allow them to explore different scenarios of such meetings.
The world they inhabit is filled with danger and darkness. So, when Ciel is hurt and Sebastian comforts him, it's like a small ray of light in that dark world. It gives the readers a sense of hope and warmth in an otherwise often - cruel setting.
One great 'Undertaker x Sebastian' fanfiction is 'The Unlikely Alliance'. It delves into a scenario where they have to work together to solve a mystery in the underworld. The story is filled with interesting character interactions and a touch of humor.
The popularity of Gon x Killua fanfictions lies in their strong friendship in the original series. Fans love to explore more of their relationship, so they create or read fanfictions.
One reason is the huge fan base of Naruto already. People are so attached to Team 7 that they want to see different scenarios. In fanfictions, we can see how their relationships could have been different. For instance, what if Sasuke never left? Fanfictions can explore these 'what - if' situations, which is very appealing to fans.
The popularity of Cloud x Sephiroth fanfictions can be attributed to the complex and dynamic relationship between the two characters in the original source. Their antagonistic yet intertwined destinies in the game make for a rich ground for fanfic writers to explore different scenarios.
The contrast between Naruto's brash and outgoing nature and the more reserved and traditional Hyuuga clan is another factor. It creates a dynamic that is ripe for storytelling. Fanfiction writers can play with this contrast, making for interesting character developments and plotlines. For instance, how Naruto might break down the Hyuuga's traditional barriers or how a Hyuuga might influence Naruto's wild ways.
Also, the lack of complete exploration of their relationship in the official story is a big factor. Fans are curious to know more about their past, their private conversations, and how they truly felt about each other. Fanfictions fill this gap by providing various interpretations. Some fanfictions might focus on their childhood days and how their friendship grew, while others might look at their relationship during the more tumultuous times in the shinobi world.
The popularity of 'Sonic X Infinite' fanfictions can be attributed to the interesting dynamic between Sonic and Infinite. Their opposing natures create a lot of room for exciting stories. Sonic is the hero, and Infinite is the villain, and fanfiction writers can explore different scenarios of their encounters.
The popularity of Marinette x Alya fanfictions can be attributed to their strong friendship in the original series. Fans love to explore the deeper aspects of their relationship. They have a great dynamic, with Alya being more outgoing and Marinette being a bit more reserved, which makes for interesting storylines.