It could be that Ash's father was lost in a different dimension all this time. Through some strange events, Ash ends up in that dimension too and they meet. His father then helps Ash understand his own powers better and they plan to return to their own world together.
Maybe in the fanfiction, Ash's father is a researcher who has been studying a rare type of Pokemon. When they meet, he takes Ash on an adventure to find that Pokemon, and along the way, Ash learns more about his family history.
Well, one possible plot could be that Ash's father turns out to be a powerful Pokemon trainer who has been on a secret mission all this time. When they meet, his father shares some unique Pokemon training techniques with Ash.
He could be an ex - champion who had to give up his title for some noble reason. Now that he meets Ash, he wants to see his son reach the same heights.
Well, the plot could involve Ash getting transported to a special realm where Arceus resides. Maybe Arceus sees something special in Ash and decides to test him. Ash could be given tasks that are related to saving the Pokemon world from a great danger that only he, with the help of Arceus, can prevent.
It could be that Aggron gets into some trouble, like being captured by an evil team. Ash then has to come up with a plan to rescue it. He might use his other Pokemon and his wits to outsmart the bad guys. Along the way, we could see how much Ash cares for Aggron and how far he'll go to save it.
In this kind of fanfiction, perhaps Ash loses a big Pokemon battle and his Pokemon feel disappointed and abandon him. This could lead to Ash going on a journey of self - discovery to regain their trust and friendship.
Well, one possibility could be that his father reveals some long - held family secrets. Maybe he tells Starlord about a powerful heritage or a hidden mission that only their family can undertake.
One possible plot could be a battle over different ideologies. Ash might have grown to believe in a more compassionate way of treating Pokémon, while his father could have a more traditional, perhaps harsher view. This could lead to a physical or mental battle as Ash tries to prove his way is right.
Well, it could be about Ash and Red teaming up to face a powerful new villain in the Pokemon world. Maybe they combine their unique skills and knowledge of Pokemon to overcome challenges.
One of the plot highlights might be the reconciliation between them if they had some sort of estrangement before. This could involve a lot of emotional exchanges and apologies. Additionally, the fanfiction could have a plot highlight where Atreus and his father go on a journey together right after the meeting, exploring new places and having adventures that further develop their relationship.
In this kind of fanfiction, perhaps Teddy Lupin discovers a magical way to time - travel and meets his father. It could show Teddy learning about his father's character and values through their interactions. Maybe his father teaches him some unique magic that was passed down in the family.
In a 'Tom Riddle meets his father' fanfiction, perhaps Tom uses magic to track down his father. When they meet, his father is a normal, non - magical man living an ordinary life. Tom, with his air of superiority, tries to manipulate his father into doing his bidding. But his father resists, not understanding the power Tom holds. This struggle between them could lead to a series of events where Tom's true nature is revealed to those around his father, and Tom has to decide whether to kill his father to keep his secrets or try to use him in some other way.