One idea could be a crossover where Naruto, with his ninja skills, is transported to Celty's world. He might team up with Celty to solve some mystery in her city. Naruto's ability to sense danger and Celty's unique skills could make for an interesting partnership.
The theme of discovery is also present in Celty and Shinra fanfic. They are constantly discovering new things about each other and about themselves through their relationship. And the theme of the supernatural world is often explored as Celty is a supernatural being and Shinra is involved in that world. This adds an element of mystery and excitement to their relationship in the fanfics.
Yes, they can be. Pegasus has been used so often in fantasy stories that it has become somewhat of a cliche. They are a very common and recognizable element in the genre.
A cliche novel often has predictable plots. For example, the love - at - first - sight scenario where the two main characters meet and instantly fall in love without much development. Also, it may use overused character types like the damsel in distress or the brooding hero. The settings can be very common too, like a small idyllic town or a big, bustling city with all the typical elements.
Love and loyalty are very common themes. Celty and Shinra have a deep love for each other that is often the focus. Fanfics show how they are loyal to one another through various situations. Also, the theme of discovery is there. As Celty discovers more about the human world through Shinra, and Shinra discovers more about Celty's true self, these aspects are frequently written about in the fanfics.
Love and loyalty are often themes. Shinra is always very loyal to Celty, and their love story, which is quite unique given Celty's nature, is a central part. Also, the theme of discovery. Celty is constantly discovering more about the human world with Shinra by her side, and Shinra is learning about Celty's world as well.
In a cliche Christmas story, you'll often find the element of redemption. For instance, a character who has made mistakes in the past gets a chance to make up for it during the Christmas season. There's also the use of Christmas symbols like Christmas trees, snow, and bells to set the mood. And of course, there's always a happy ending. Whether it's a family getting back together, a person finding love, or just a general feeling of hope and joy at the end of the story.