Maybe Hiccup, being a dragon rider, discovers that Mulan has a special connection to dragons in her own world. They could team up to protect the dragons from an evil force that is trying to hunt them down. Their relationship could develop as they face this common threat.
One idea could be a post - war story where Mulan and Shang are adjusting to civilian life. They could face challenges like how to incorporate Mulan's new - found independence into a more traditional village life while also exploring their growing feelings for each other. Another plot could be a what - if scenario where Shang discovers Mulan's identity much earlier in their journey and has to decide whether to keep her secret or expose her.
One interesting plot idea could be that the dragons start to communicate with Hiccup in a more complex way through their listening skills. For example, they might be able to understand his unspoken fears and desires, and then help him in ways he never expected, like leading him to a hidden treasure that only they knew about because of their unique perception.
Maybe there could be a fanfiction where Shan Yu has a younger sister who looks up to Mulan. Shan Yu is initially against this friendship, but as he sees how Mulan influences his sister in positive ways, he starts to have a change of heart. Mulan, on the other hand, through her interactions with the sister, gets to know Shan Yu in a different light. This could lead to a slow - burning romance as they both overcome their initial prejudices.
Well, a great plot idea for Astrid x Hiccup family fanfiction is that their family discovers a new, uncharted island that has unique dragons. The family then has to work together to understand these dragons and their habitat. Also, a plot where their kids start to show different talents in dragon - riding than either Astrid or Hiccup, and they have to figure out how to support and train them. And a story where the family has to deal with a natural disaster on Berk and how they stay together and survive it.
One plot idea could be Fem Hiccup being the only one who can truly understand Toothless's unique abilities and they go on a journey to discover a hidden dragon world that only Toothless can sense. Another could be Fem Hiccup having to protect Toothless from a group of dragon hunters who are after his special powers.
A great concept for a Mulan lemon fanfic might be to put Mulan in a sort of alternate universe. In this universe, she doesn't have to hide her true identity as a woman from the start. She meets a prince who is instantly attracted to her. Their relationship develops quickly, with many romantic and passionate encounters. They might go on horseback rides together through beautiful landscapes and share intimate moments under the stars.
A Hiccup OC fanfic could also explore what would happen if Hiccup's OC was from a different tribe. They could have different traditions and skills, and the story could focus on how Hiccup and his friends learn from this new character. For example, the OC could teach them a unique way of dragon training that they've never seen before.
Maybe in the fanfiction, there's a threat to both their kingdoms. Mulan, with her combat skills, and Belle, with her intelligence, team up. They use their unique strengths to outwit the enemy. For example, Belle deciphers the enemy's coded messages while Mulan leads the defense. They also learn from each other's cultures along the way.
Well, one interesting idea could be their exploration of each other's magical abilities. Hiccup could be fascinated by Elsa's ice powers and they could learn from one another about controlling and using their unique gifts.
One idea could be a crossover where Naruto's world and the world of X - 23 from the X - Men collide. Maybe X - 23 is on a mission and accidentally ends up in the Hidden Leaf Village. She has to learn to adapt to this new place with its different culture and ninja ways. Naruto could be intrigued by her and her abilities, and they could team up to face a common enemy.