Well, El Cid has a basis in history. Rodrigo D铆az de Vivar was a real person, but the stories about him have likely incorporated fictional elements over time to make them more captivating.
One possible fanfiction could be that Cid, Daya and Abhi are students in the same school. They start as strangers but are grouped together for a project. Cid is really good at research, Daya has great artistic skills to present the project, and Abhi is excellent at organizing their work. At first, they have some minor disagreements, like Cid wanting to do everything his way and Daya feeling her ideas are not being heard. But over time, they learn to respect each other. They stay up late nights working on the project, sharing snacks and stories. By the end of the project, they have become the best of friends and are known as the inseparable trio in school.
I'm not sure which specific 'cid abhijeet and purvi love story' you are referring to. There could be many fictional or personal stories with such names. Maybe you can give more details like where it comes from or some key events in the story?
It's hard to say. Sometimes the manga keeps such revelations hidden until the right moment to create suspense. So, we'll just have to wait and see if Rose discovers Cid's secret identity.
Well, Cid Kagenou does reveal himself at a crucial point in the manga. This reveal has significant implications for the plot and character development.