What are some possible themes in the 'Edward has a tail' fanfiction?

Well, in a 'Edward has a tail' fanfiction, it could be that Edward is some sort of unique creature. The tail might play a significant role in the story, like it could be a source of his power or a mark of his different identity. For example, if it's a magical tail, it could be used to perform spells or open portals to other dimensions. It all depends on the creativity of the fanfiction writer.

He may say things like 'My love, you are with me now, and nothing can touch you.' Simple but powerful words to make Bella feel secure.

One possible theme could be loyalty. Loke has shown great loyalty to Fairy Tail, and the fanfiction could explore his thoughts on what loyalty means to him, especially in difficult situations.

One possible plotline could be that Kagome's tail is a result of a curse, and she has to find a way to break it. Along the way, she might face various challenges and meet new characters who either help or hinder her quest.

A possible theme could be family. If Edward is in diapers, his family would have to take care of him. This could explore the family dynamics in a different way. For example, how Esme would mother him in this state, or how Emmett would tease him but also protect him. Also, the theme of adaptation could be there. Edward would have to adapt to this new form and the limitations it brings, like not being able to move as freely as he used to.

One possible theme could be friendship. Since Edward is a rather unique and isolated character, a story could explore how he and Jimmy form an unlikely friendship. Another theme might be acceptance. Jimmy could be the one to help the community accept Edward for who he is.

One possible plot could be that Edward's daughter discovers she has a special power, just like her father. She struggles to control it at first and Edward has to guide her. They go on a journey together to find a way to fully master her power, facing various challenges along the way.

Another reason might be that he feels a great sense of guilt. For example, if he made a big mistake that had serious consequences for others, he would be overcome with guilt, which could manifest as crying.

One possible theme could be power and responsibility. As Natsu is in a 'king' role, he has to handle the power that comes with it and the responsibilities towards his friends and the guild.

One possible theme could be self - discovery. If the tail has some special meaning or ability, Rin might go through a journey of understanding himself better. Another theme could be acceptance, both from himself and from others around him regarding this unique tail aspect.