One possible plot could be that in a world filled with dark forces threatening all Pokémon, Ash discovers a way to save Mew who holds the key to restoring balance. Ash, being the selfless hero, decides to sacrifice himself to protect Mew from an oncoming, unstoppable attack. This act of sacrifice then becomes a legend among Pokémon trainers, inspiring others to be brave and selfless.
In the fanfiction, Ash and Mew could be in a situation where a dangerous and ancient curse is about to be unleashed. The curse targets Mew specifically, but Ash, having formed a deep bond with Mew during their adventures, steps forward. He offers himself as a sacrifice to break the curse. His sacrifice could be a magical exchange where his life force is drained to nullify the curse's power. Mew, deeply affected by Ash's sacrifice, then embarks on a journey to find a way to revive Ash, leading to a series of new and exciting adventures in the Pokémon world.
Well, perhaps there's a powerful and evil organization that wants to capture Mew to use its power for their own dark purposes. Ash gets in the way and realizes that the only way to stop them from getting Mew is by sacrificing himself. He might create a diversion or directly take on a powerful attack meant for Mew. After his sacrifice, Mew could use its special powers to bring Ash back in some way, like through a powerful wish or a unique Pokémon ability.
Perhaps in this fanfiction, Ash discovers that he has a deeper connection to Mew than he ever thought. It could involve Mew choosing Ash as a special trainer to carry out a very important mission in the Pokémon world, such as saving a certain region from a new and powerful threat. This would lead Ash to face many challenges and grow in ways he hasn't before.
The other characters' reactions would vary greatly. For instance, Gary, who has always had a bit of a rivalry with Ash, would be shocked. He might initially be in denial but then realize the depth of Ash's selflessness. Professor Oak would be extremely sad and would see Ash as a true hero. The Gym Leaders that Ash has faced and befriended would hold commemorative events in their Gyms. They would talk about Ash's courage and how his sacrifice has left a huge mark on the Pokémon world. His sacrifice would also inspire younger trainers to be more like him.
Well, it could have some really cool plots. Maybe Ash has some secret admiration for Mew that leads him on all kinds of hidden adventures or self - discovery. He might be trying to protect Mew in secret or has a special connection with it that no one else knows about.
In the 'ash is kidnapped by mew fanfiction', one possible plot is that Mew is acting out of a sense of desperation. It might believe that by kidnapping Ash, it can save the Pokémon world from a greater threat. Ash, being the protagonist, would then have to find a way to communicate with Mew and figure out what's really going on, all while trying to escape. Another idea could be that Mew is simply misinformed about Ash and thinks he's a danger, so it kidnaps him to protect the Pokémon realm.
One possible plot could be that Ash has a strange encounter with a Mew. Maybe he discovers a hidden power within himself that is related to Mew. This new power could attract Mew to him, and they form an unexpected bond. Ash then has to learn to control this new power while also facing challenges from other trainers who are jealous of his newfound connection with the rare Pokémon Mew.
Well, perhaps Ash could be transformed into a Mew through some magical encounter. He might then use his new form to explore the Pokémon world in ways he couldn't before, like flying high above the clouds and seeing the landscapes from a whole new perspective.
Pikachu would most likely be there. Since Pikachu is Ash's closest companion, it would be involved in any story related to Ash. Maybe Pikachu could also have some sort of interaction with Mew, like being a bit jealous at first of Ash's new connection with Mew.
One possible main plot could be that Ash hears rumors about a Mew sighting in a far - off, unexplored region. So, he decides to embark on a journey to find it. Along the way, he meets new friends and foes, all while being driven by his desire to meet Mew.
One possible plot could be that Ash is on a journey in a mysterious forest. He stumbles upon an ancient and powerful crystal. When he touches it, a strange energy envelops him and he starts to transform into Mew. As Mew, he has to adapt to his new form. He discovers he can fly and communicate with other Pokémon in a different way. He then uses his new abilities to help his Pokémon friends who are in trouble in a nearby cave, fighting off a group of powerful rogue Pokémon.
In fanfiction, the relationship between Ash and Female Mew can be very interesting. It often involves unique storylines where Ash might encounter Mew in a different context than in the original Pokémon series. For example, the fanfiction could explore how Ash's adventures change when he has a special bond with Female Mew. Maybe they go on a journey together to discover new Pokémon or face a powerful enemy that only they can defeat as a team. This relationship in fanfiction can bring out different aspects of Ash's character, such as his compassion and determination in a new light.