Power and ambition are also common themes. Emerald and Mercury are both powerful characters, and in fanfiction, their pursuit of power or their struggle with their own ambitions can be explored. Some stories show how their power affects their relationship with each other and with other characters in the RWBY universe. Additionally, the theme of identity is present. They are often trying to figure out who they really are, especially when they are in a world full of complex moral and ethical choices.
One common theme is loyalty. In many fanfictions, Emerald and Mercury are shown to be extremely loyal to each other and to their cause, whatever it may be in the story. Another theme is redemption. Some fanfictions explore the idea of them trying to redeem themselves for their past actions.
Another theme is growth. Many fanfics show how Mercury and Emerald grow both as individuals and in their relationship. They might face challenges that force them to change and adapt, which is a key part of these stories. For example, they could be in a situation where they have to question their previous beliefs and actions. This theme of growth adds depth to their characters and the story as a whole.
Redemption is also a theme. Mercury, having been part of some not - so - good deeds in his past, might find redemption through his relationship with emerald. It's about changing for the better because of someone you care about. This is shown in many fanfictions where he tries to make up for his past actions.
There's 'Mercury and Emerald: A Different Path'. This fanfic takes a unique approach by exploring what would happen if they decided to break away from their original group. It's an interesting read as it shows their growth as individuals and as a duo.
In these fanfictions, the theme of family also pops up. Some explore what Mercury's family was like before his current situation and how it might have influenced him. Another common theme is survival. Mercury has to survive in the dangerous RWBY world, and fanfictions often depict his struggles and how he overcomes various threats.
A common theme is friendship. Many fanfics explore how Mercury and Emerald can become friends despite their differences. Another theme is loyalty. They might show how they are loyal to each other in difficult situations.
Another theme is loyalty. Some fanfictions focus on Emerald's loyalty, whether it's her past loyalty to a certain group or her new - found loyalty to different people as she changes. For instance, she could be torn between her old comrades and new friends she makes along the way.
A really cool fanfiction is 'Mercury and Emerald in the Realm of Shadows'. It takes them into a dark and mysterious realm where they have to fight to survive and rely on each other more than ever. 'Emerald's Secret and Mercury's Promise' is another good one. Here, Emerald has a secret that she's afraid to share, but Mercury's loyalty to her is unwavering. And 'Mercury and Emerald: Facing the Past' where they are forced to confront their past misdeeds and try to make amends while still being the characters we know from RWBY.
One common theme is loyalty. Fanfictions often explore how loyal Mercury is to Cinder and vice versa. Another theme is power. They are both powerful characters, and fanfictions might show their pursuit of more power or how they use their existing power in different situations.
One common theme is friendship. Despite their differences, many fanfictions explore how Mercury and Penny could form an unlikely friendship. Another theme is redemption. For Mercury, who has a rather complex and often villainous role, fanfictions may show him on a path of redemption with Penny's influence.
The RWBY universe itself is full of mystery and action. Fanfiction about Mercury and Emerald can add more depth to their characters and their place in this universe. It can also create new storylines that might not be explored in the main series, which is very appealing to fans.