One important theme is the exploration of one's own desires and how they interact with the feelings of those around. It shows how characters grow as they face their own egoism in the context of love. For example, they might have to balance their own needs with the needs of their partners. Also, the theme of acceptance, both of oneself and of others, runs throughout the story.
There might not be an obvious direct connection between Stirner's egoist philosophy and a 'girl' in Pulp Fiction specifically. Stirner's egoist ideas center around the individual's self - interest and self - ownership. In Pulp Fiction, the female characters often have their own motives and self - serving actions which could be loosely related in the sense that they are also acting in their own self - interests, but it's a very tenuous link.
One possible development is that Neo becomes more protective. As she's going to be a mother, she might become more aggressive in defending herself and her unborn baby from any threats in the RWBY world. This could also lead to her making new alliances or breaking old ones depending on who she perceives as a threat or an ally. Another aspect could be her internal struggle with her new identity as a soon - to - be mother, which could change her personality over time.
The female characters in Pulp Fiction are diverse. Stirner's egoist view of the individual's self - determination can be related to them. They have their own goals and desires that they pursue regardless of the social or moral norms of their environment. For example, a female character might be involved in illegal activities not because she is following someone else's orders but because she has her own self - interested reasons, such as financial gain or personal revenge, which can be seen as an application of Stirner - like egoist philosophy.
Ruby could potentially be Neo's friend. Ruby is friendly and open - minded. In a swimsuit fanfiction, they could bond over their shared love for adventure. Maybe they go on a treasure hunt on the beach together.
Roman Torchwick could be a likely candidate in some fanfics. Since he had a connection with Neo in the original series, he might be brought back in a fanfic to brainwash her for his own ends. Another one could be Salem. She's always looking for ways to gain an edge, and Neo's skills would be useful to her if she could control her.
It depends on how you define 'strongest'. Neo has impressive powers in his fictional universe, but it's subjective to claim he's the absolute strongest.