I'm not sure specifically as I haven't read this novel. It could be about a relationship where there is an age - related obstacle preventing the characters from being together in a romantic or mating sense.
One example could be 'Moonlit Youngblood'. In this novel, the young werewolf protagonist is considered too young to mate according to the pack's traditions. The story focuses on her growth and how she deals with the pressure of this expectation while also facing other challenges in the werewolf world.
Often, they use it as a source of conflict. For instance, in some novels, older werewolves might try to force the young ones into early mating for political or power - related reasons. This can lead to the young werewolf having to fight against this pressure.
One interesting story could be about an older man who is a retired teacher and a young mate who is a new volunteer at the local community center. The older man shares his knowledge of history and literature with the young mate, and they end up collaborating on a project to bring more cultural events to the community. This story shows how different generations can come together and create something positive.
We can learn about the transfer of knowledge. Older men often have more life experience and can pass on valuable skills or wisdom to the young mates. For example, in a story where an older man is a skilled carpenter and the young mate is interested in learning woodworking, the young one can learn techniques that might take years to figure out on their own.
It could be Hermione. In some alternate interpretations, there could be a situation where Hermione, while trying out a new and powerful magic, accidentally hurts Harry. Their friendship is put to the test as Harry has to deal with the pain and Hermione has to come to terms with what she's done.
Maybe it's Ron. Suppose Ron gets jealous of Harry's fame and power and, in a moment of weakness and envy, decides to abandon Harry to die. This would create a lot of drama as Ron and Harry have been friends for a long time, and such a betrayal would be a huge shock to the story's readers.
Well, it could be a completely new character created specifically for this fanfiction. Maybe an elf or a human from Middle - Earth who has some sort of special connection with Harry.
Some characters might be initially shocked. They could be confused about what it means and what implications it has for their future. For example, a character who values their independence might feel a bit trapped at first.