Overcoming obstacles together is also a frequent theme. They might face external threats or misunderstandings. In some fanfics, there are rival characters who try to come between them, but Tsuna and Haru always find a way to overcome these difficulties and strengthen their bond in the process.
Love and friendship are common themes. Since they are characters from the same series, their relationship can be explored in terms of how a friendship can turn into something more. Also, growth is a theme. For example, Tsuna might grow more confident in his relationship with Haru, and Haru might grow more independent while still being close to Tsuna.
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.
Love is a very common theme. It shows how Tsuna and Haru might fall in love or their existing love story. Another common theme is friendship, as they are friends in the original and fanfiction often explores different aspects of their friendship.
One common theme is friendship turning into love. Since they start as friends in the original work, many fanfictions explore how that relationship deepens into romantic feelings over time.
One common theme could be friendship. Haru and the pool setting might be used to show the development of a deep friendship between characters.
Friendship is a common theme. Baron and Haru often form a deep bond in fanfics, supporting each other through different situations.
One common theme is friendship development. Their relationship might start as just acquaintances and gradually grow into a deep and meaningful friendship.
One common theme is friendship turned into something more. They start as friends or acquaintances and then develop deeper feelings for each other.
One common theme could be transformation. Haru might transform in relation to water, like becoming more powerful when in contact with it.
One common theme is the exploration of their contrasting personalities. Shizuku's calmness against Haru's wildness makes for interesting character dynamics. Another theme is friendship or the development of a deeper relationship, like love.