One possible plot could be that Naruto is somehow experimented on and gains Wesker's powers. He then has to deal with the new - found powers while also trying to keep his ninja identity. He might face challenges from both the ninja world who fear his new powers and some unknown forces related to the origin of Wesker's powers.
The fanfiction might also focus on their shared history. They've both been through a lot in the Resident Evil world. There could be scenarios where they remember past encounters and how those memories shape their current interactions. For example, perhaps a past mission where they had a moment of mutual respect that is now overshadowed by their current enmity. Writers can use this to build a more in - depth and nuanced relationship in the fanfiction.
The exploration of morality is quite common. Wesker has his own moral code (or lack thereof), and when crossed with other characters, it can lead to discussions about right and wrong. For instance, if he's crossed with a heroic character, their different views on saving lives or using power can be explored. Also, survival is a theme, especially when crossed with characters from other survival - horror settings. They have to figure out how to survive in new and dangerous situations together.
One interesting Leon Wesker fan fiction could be about his origin story. Maybe it delves into his childhood and how he came to be the character he is in the game. It could show his early training and the events that shaped his personality.
"Resident Evil Big Boss" was a sci-fi-doomsday crisis novel written by the author, Tearful Sand. The protagonist was reborn into the world of Resident Evil and became Wesker. He absorbed the DNA of other bosses and possessed powerful abilities. I hope you like this fairy's recommendation. Muah ~😗
Wesker in Resident Evil 5 was a complicated character. He had both an evil side and a human side. In the movie, Wesker was portrayed as a scientist who controlled the zombie virus. He was committed to spreading the zombie virus around the world to achieve his goal. However, he also showed some human side. For example, after he was defeated by Alice, he showed pain and sadness and tried to find a solution instead of simply giving up. Therefore, we can't simply describe Wesker as a good or bad person, but a complex character with a human side and an evil side.
The coat might be a key element that drives the plot forward. For example, if the character with the coat is being chased because someone wants the coat, that would create action and conflict.
One popular trope is the 'enemies - to - lovers' scenario. Given their antagonistic relationship in the main Resident Evil storyline, it's not uncommon for fanfiction to explore the idea of them gradually developing feelings for each other. Another trope is the 'power imbalance' where Wesker's superior strength and abilities create a dynamic where Chris has to constantly struggle to keep up.