Maybe the ghosts are from outside the family. They are attracted to Mirabel's new - found magic and try to use her to get something they want. This could lead to a conflict where Mirabel has to decide whether to help them or protect her family. She could also try to find a way to get rid of the ghosts if they pose a threat.
One possible plot could be that Mirabel discovers her ability to see ghosts after the events of Encanto. The ghosts could be the ancestors of the family who have unfinished business. For example, they might want to pass on a long - forgotten family secret to Mirabel that could help the family in some way.
Another place to check is Wattpad. It has a large collection of fanfictions. Some authors might have explored the concept of Mirabel seeing ghosts in their own unique ways. Browse through the Encanto - related fanfictions on there.
Perhaps in the fanfiction, Mirabel gets a gift that allows her to see the true potential in each family member. So she uses this gift to encourage her family members to embrace their individuality more, which in turn strengthens the family bond. For example, she might show Luisa that there's more to her than just strength, and help her find a new passion.
A possible plot could be that the orb weaver is a protector of the Madrigal family's magic. Mirabel discovers it when she feels lost and left out. The orb weaver shows her a vision of the past and how the family's magic was first created. This gives Mirabel the idea to use the orb weaver's magic to enhance the family's existing magic in a new way, bringing a new era of harmony to the Madrigals.
In the fanfiction, Abuela may be under a lot of pressure to keep the family's magic and reputation intact. When something goes wrong that she blames on Mirabel, she kicks her out. Mirabel then has to face the outside world alone. She could encounter various challenges and adventures, which in turn make her grow. Eventually, she might find a way to reconcile with her family and even help save the family's magic in a new way.
She might lose the trust of her family members. In the Encanto family, trust is crucial. If Mirabel lies and is found out, her family may start to question her honesty in the future.
Perhaps Abula is jealous of Mirabel. Mirabel might be getting too much attention or praise lately, and Abula, feeling overshadowed, decides to get rid of her by kicking her out. In this scenario, Abula could be a rather petty character who can't handle someone else being in the spotlight.
One possible reason could be that Mirabel might have accidentally broken an important family heirloom. In the context of the Encanto family, their heirlooms are often tied to their magic and family identity. If she damaged something like that, Abuela, who is very protective of the family's traditions and magic, would likely punish her.
It could affect the plot by making Naruto more cautious. Since he can see ghosts, he might be constantly on edge, not knowing if a new ghost is a friendly one or a threat. This could lead to him making different decisions in battles or in his interactions with other characters. He might also try to avoid certain places where there are a lot of ghosts, which could change the course of his adventures.
One important ghost could be the previous Hokages. They have a lot of knowledge and wisdom about the village and its secrets. Naruto seeing them could be a way for him to get some really valuable advice on how to deal with the current threats to the village, like a new powerful enemy or internal political issues.
Well, it could be that Naruto is found by friendly ghosts as a baby. They might teach him unique skills that are different from the normal ninja arts in the Naruto world. Maybe they use their ghostly powers to help him train, like making him run through spectral obstacles.