Power - up or growth themes are seen too. As both characters have their own power - related storylines in their original series, in the fanfiction, they might combine their powers or help each other grow stronger, which makes for an interesting narrative.
One common theme is growth. Female Tsuna often has to grow as a person, and Reborn is there to guide her. For instance, she might learn new skills or gain more confidence. Another theme is friendship. Even though there can be romantic undertones, their friendship is a central part of the story. They rely on each other and trust each other.
A common theme is the exploration of a romantic relationship. Given their different personalities in the original series, seeing how they interact in a romantic context is interesting. Another theme could be the growth of the characters. For instance, how a female Tsuna might become more confident or assertive in the presence of Hibari, and how Hibari might become more open - minded.
One common theme is friendship turned into love. Since they are likely friends in the original story, fanfiction often explores how that relationship deepens into romantic love.
One common theme is the contrast of their personalities. Hibari is often portrayed as more aggressive and tsuna as more timid, so their coming together is an interesting dynamic. Another theme is loyalty. They both have their own sense of loyalty, and in fanfiction, it's often explored how they extend that loyalty to each other.
The theme of friendship is also prevalent. Their relationship evolves from a teacher - student dynamic to a deep friendship. They support each other through various challenges, like in 'The Bond of Reborn and Tsuna' where they go through many trials together and their friendship becomes unbreakable.
One common theme might be friendship. They could be shown supporting each other through various challenges. Another could be teamwork, especially if they are in a situation where they need to work together to achieve a goal.
Another theme is the growth of their relationship over time. They start off as perhaps not getting along so well, but as the story progresses, they come to understand and care for each other more. It's like a journey of mutual discovery. In many fanfictions, they also face external threats together, which binds them closer as they fight side by side.
Another theme is the protection of Kyoko by Tsuna. Given Tsuna's growth and strength in the series, fanfictions often depict him as a protector of Kyoko in various dangerous situations, which also helps to strengthen their bond.
One common theme might be friendship. Despite their differences, they could develop a strong bond in the fanfiction. Another could be mentorship, with kawahira guiding tsuna in some way.
One common theme is friendship. Dino and Tsuna often start off as friends or with Dino being a guiding figure for Tsuna. Another theme is growth. Tsuna's growth as a character, both in strength and in his relationships, is frequently explored in relation to Dino.