One common theme is the exploration of the supernatural world through the relationship. Since 'Blood Ties' is a show with supernatural elements, the fanfictions often use the Henry x OC relationship to further explore things like vampires, their powers, and the world they live in.
Another theme is the discovery of self. The OC, by being in a relationship with Henry, might discover new aspects of themselves, like hidden strengths or a new understanding of the world around them. And Henry, too, might learn more about his own humanity or lack thereof through the connection with the OC.
Love and sacrifice are also frequent themes. The OC might fall in love with Henry despite his vampiric nature, and there could be situations where one has to sacrifice for the other. It adds a lot of emotional depth to the story.
There's also 'Henry's Unforeseen Connection'. In this fanfiction, the OC is a mysterious figure who enters Henry's life and changes it in unexpected ways. It has a great mix of drama and the supernatural elements that are characteristic of 'Blood Ties'.
A theme that often comes up is redemption. If the OC has a troubled past or has made mistakes, they might find redemption through their relationship with Henry. Henry, with his pure heart and his role in the story, can be a catalyst for the OC's change. Additionally, the exploration of different timelines or alternate universes is common, where the relationship between Henry and the OC can be very different from what we see in the original show.
In 'Henry Danger Henry x OC fanfiction', a frequently seen theme is the rescue scenario. The OC might get into trouble and Henry has to save them, which then starts their relationship. There's also the theme of teamwork. They could work together to solve problems in the city, like helping out at the local community center or dealing with a new type of threat. Additionally, the theme of family acceptance might be there. Henry's family plays a big role in the show, and the fanfiction could explore how his family accepts or reacts to the OC in his life.
Love is a very common theme. Given the vampire - human interactions in both 'Blood Ties' and 'Vampire Knight', fanfictions often explore romantic relationships between these two groups. It could be a forbidden love or a love that overcomes the differences between species.
Overcoming challenges together. For example, they might face a difficult situation like a shortage of coal or a broken part, and they have to work as a team to solve it. In many fanfictions, their relationship evolves as they face these difficulties side by side. Another common theme could be competition in a friendly way. They might compete to see who can pull the heaviest load or be the most efficient engine, but at the end of the day, their bond remains strong.
Often, there are themes related to loyalty. Ray and Henry might be in a situation where they have to prove their loyalty to each other. Romance can also be a theme, although not always. Some fanfics might focus on the budding romantic feelings between them. And sometimes, there are themes of sacrifice, where one might sacrifice for the other's well - being.
One common theme is friendship. Many fanfictions explore how Sammy and Henry become friends, how they support each other through tough times. Another theme is loyalty. They often show that no matter what, Sammy and Henry are loyal to each other.
Adventure themes are also quite popular. The two characters might go on an adventure together, facing challenges and obstacles that bring them closer and strengthen their relationship, whether it's a physical adventure like exploring a new place or a more metaphorical one like dealing with personal issues in a new environment.
Adventure can be another theme. Maybe Henry and Alice go on a quest together, and their relationship develops during this journey. They face challenges side by side, which brings them closer.
One common theme is friendship - turned - love. They start as friends and gradually develop deeper feelings for each other.