A fun plot could be that Belle accidentally travels to Mulan's time and place. Mulan has to help Belle adjust to the different way of life. In return, Belle teaches Mulan about some of the advanced concepts from her own world, like architecture. Eventually, they work together to build a bridge between their two worlds, literally and figuratively.
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.
Maybe Belle gets lost in the jungle where Kaa lives. Kaa at first thinks she's an intruder but then realizes she's different. He helps her find her way back home by using his knowledge of the jungle paths. Along the way, they form an unlikely friendship and Belle teaches Kaa about the outside world.
One idea could be that after Shan Yu's defeat, instead of dying, he is captured and Mulan is tasked with guarding him. During this time, they start to have conversations that make them see each other in a different light. Shan Yu might share his past and the reasons for his aggression, and Mulan might start to understand the complexity of war from his perspective.
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 idea could be that Belle's transformation into a beast is a result of a curse placed on her by an envious witch. As a beast, she has to learn to control her newfound strength and anger. Another plot could involve Belle finding other cursed creatures in the forest and forming a sort of 'beast community' where they all support each other in trying to break their curses. Maybe Belle's journey as a beast also makes her understand the Beast from the original story on a deeper level, and she uses that knowledge to find a way to reverse the curse not just for herself but for all the cursed beings.
One idea could be that they face challenges in their relationship due to the pregnancy. Maybe Rumple is overprotective and it causes some friction. Another could be that they discover something magical about the baby during the pregnancy that ties into the fairytale world they live in. For example, the baby might have a special power that starts to show even before it's born.
Well, a really interesting plot could be that Prince Adam's curse starts to affect Belle in some strange way, like she starts to have visions of his past. Then they have to figure out how to stop this new development. Also, they could go on a journey to find a long - lost relative of Adam's who might have a way to break the curse completely. And there could be a part where they face a magical being who tests their love for each other in unexpected ways.
Well, they could be forced to work together on a project for the village. Dark Belle has her own ideas about how things should be done, and Gaston has his traditional views. At first, they clash, but as they get to know each other better, they start to compromise. Maybe there's a magical artifact that they both need for different reasons. Dark Belle wants it for knowledge, and Gaston wants it to prove his worth. This leads to a series of adventures where they gradually understand and respect each other more.
One idea could be exploring the backstory of the beast in more detail. Maybe he had a different life before the curse and his past relationships or adventures could add depth to the fanfiction. Another plot could involve the belle teaching the beast about a new culture or skill she has, like a unique form of art or a different language.
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.
Another plot could involve Belle getting into trouble with a local gang, and Jack uses his artful dodging skills to rescue her. This could lead to a deeper bond between them as they face more challenges together. For example, they might have to outwit the gang leader who has a vendetta against them.