What would happen if Greninja stayed with Ash in fanfiction?

It could lead to some really exciting storylines. Maybe Ash and Greninja would face even tougher challenges together and become an unbeatable team.

They might have an epic battle against a common enemy together. Greninja could show off some new moves it has learned during their separation, and Ash could use his experience from other adventures to lead them to victory.

In this fanfiction, Greninja might come back with new powers. Maybe it has been on a special training journey and returns to Ash to help him in a big battle.

In this fanfiction, Ash might introduce Greninja to his family. His mother could be surprised but also happy to see such a unique Pokémon. Maybe Greninja would show off some of its cool moves in the backyard.

There could be unfinished business between them. They might have a shared goal that they haven't achieved yet. Greninja's return to Ash in the fanfiction could be to finally complete that goal, whether it's winning a particular Pokemon tournament or saving a certain place from destruction.

One possible scenario is that Greninja is tricked into believing that Ash is endangering its kind. So it decides to turn on Ash. Haruka, on the other hand, having known Ash for a long time, might try to convince Greninja of Ash's true nature. However, Greninja's loyalty is so shaken that it doesn't listen easily. In the end, Ash has to prove his worth and friendship to Greninja all over again.

Well, they could have an epic battle side by side again. Maybe they face a powerful new enemy that only their combined skills can defeat. Ash could show how much he's grown since they last parted, and Greninja might have some new moves or abilities too.

Had Misty remained with Ash, their relationship might have evolved in unexpected ways. Maybe they would have discovered new Pok茅mon together and overcome more significant obstacles, making their journey even more memorable.

If the football team stayed in the glee fanfiction, it might bring a contrast in personalities and interests. This could result in either chaos or unexpected harmony, depending on how the writer handles it.

In such fanfiction, they might face new challenges related to their human identities and social expectations. Maybe they'd struggle to fit into human society or have conflicts with former fairy tale characters.