One common theme is the struggle between love and duty. Leon and Ada are often on different sides in the official stories, so fanfics explore how their feelings for each other play out against their respective missions. For example, in many fanfics, Ada has to make a choice between helping Leon and fulfilling her own tasks.
Hunnigan could be a great addition. She could provide Leon with information and support from the outside, and her presence could add some tension as she might be suspicious of Ada's motives. Another good character is Wesker. His past connection to Ada could create more drama and conflict in the story. He could be a shadowy figure trying to manipulate the situation between Leon and Ada.
Love in the face of danger is also a prevalent theme. Their jobs put them in constant peril, but that doesn't stop the development of their relationship. Fanfics often show how they find love and connection despite all the chaos and threats around them. It's a contrast that makes for very engaging reading.
Good character development makes a great Ada Wong and Leon fanfic. Writers need to stay true to their personalities. Leon's sense of justice and Ada's mysterious allure should be well - presented. Also, an exciting plot is key. Whether it's a new bio - horror threat or a complex political conspiracy, it should keep readers on the edge of their seats.
The mystery surrounding their relationship makes Ada Wong x Leon fanfic appealing. In the games, they have this on - again, off - again connection that's full of intrigue. Fanfics can fill in the gaps and create more in - depth interactions.
Well, if you're into Ada Wong x Leon fanfic, you could also check out Archive of Our Own (AO3). There, you'll find a variety of interpretations of their relationship. Some writers might delve into the romantic tension between them, while others could explore their partnership in a more action - oriented way, like how they team up against a new bio - threat in a fan - created scenario.
The main antagonists could be the same organizations they have always fought against. For example, Umbrella Corporation or any other bio - terrorist groups. These groups might see Ada's pregnancy as a weakness and try to use it against them. They could target Ada to get to Leon or try to harm the unborn child to stop Leon from interfering with their evil plans.
One possible storyline could be that Leon and Ada find out about the pregnancy unexpectedly. They then have to deal with the challenges of their dangerous line of work while also preparing for a new life. For example, Leon might be extra protective of Ada during their missions.