Well, it can be considered popular. It has a certain following. The world - building in 'ragna crimson light novel' is really appealing, which is one of the reasons for its popularity. Also, the character development is engaging, making readers want to keep reading to see how the characters grow and change throughout the story.
One common theme could be the exploration of their relationship dynamics. It might involve how they interact, whether it's in a friendly way or with some underlying tension.
One common theme could be the exploration of complex relationships. Since yaoi often involves male - male relationships, there might be a focus on the emotional connection and the power dynamics between 'greed ler' and 'once ler'.
I'm sorry, but I don't have specific 'greed ler x once ler yaoi fanfiction' to recommend directly. You can try searching on some popular fanfiction websites like Archive of Our Own. There might be a wide range of works in that genre if they exist within the site's guidelines.
I'm not sure about specific 'once ler x greed ler fanfic' off the top of my head. You could try searching on popular fanfic websites like Archive of Our Own. They usually have a wide variety of fanfictions in different categories.
A 'ler light novel' is likely a specific type of light novel. Light novels are usually short, easy - to - read novels often with anime - like illustrations. However, without more context, it's hard to say exactly what makes a 'ler light novel' unique. It could potentially be a light novel related to a specific genre, series, or publisher named 'ler' or it could be a misnomer or something very niche.
I'm not sure which 'ler caree' you are referring to. There may be many authors with less - known names. Maybe you could provide more context or check if the name is spelled correctly.