I'm not entirely sure what 'cell x 18 fanfic' specifically refers to. It could potentially be a fan - made story related to something named 'cell' and perhaps the number 18 has some significance within that particular fanfic's context, like a chapter number or a specific element count.
The plot could be about a power struggle. Cell, always seeking more power, might see Android 18 as a key to achieving ultimate strength. Android 18, on the other hand, would resist his attempts. This back - and - forth struggle could form the core of the fanfic.
One common theme is the clash of ideologies. Goku is all about protecting the innocent and having a fair fight, while Cell is more about self - preservation and domination at first.
Power is a very common theme. Fans often explore who would be more powerful in different situations or how they could combine their powers. Another theme is rivalry, as they are both powerful villains in the Dragon Ball universe. Their personalities also play a big role, with themes of pride and ego often coming up.
First, give the MC a clear backstory. For example, if they are a human, explain where they come from, their family, and what led them to get involved with the events related to Cell. Maybe they were training in martial arts because they had a personal vendetta against powerful beings after their family was killed by a random villain. This would give them a motivation to face Cell.
A common theme is power. Since Cell is a powerful character in DBZ, often in 'cell x oc dbz fanfic', the OC might be on a journey to gain power or deal with Cell's power. Another theme is redemption. Sometimes the fanfic might explore Cell's character in a way that gives him a chance at redemption through his relationship with the OC.
The contrast in their characters. Bulma is a brilliant scientist and Cell is a bio - engineered being. Their interactions can be really fascinating as they come from such different backgrounds. It's like two opposite poles attracting each other in a way.
A well - known 'cell x reader fanfic' is 'Cell and the Reader: A Forbidden Encounter'. It plays on the idea of the forbidden nature of their relationship. The fic might explore how society in the Dragon Ball universe would react to such a relationship between a powerful being like Cell and an ordinary reader character, adding an extra layer of drama and intrigue.
It could be Beerus. Since he is a powerful God of Destruction, he would see the union of Frieza and Cell as a threat to the balance of the universe and try to stop them.
One common theme is the exploration of an unlikely relationship. Since Gohan is a hero and Cell is typically a villain, seeing them together, especially in a romantic or partnership - based context, is very interesting. It often involves the idea of redemption for the female Cell character.