The original version of Ramayana composed by Valmiki consists of nearly 24,000 verses, divided into seven Kandas (volumes) with 500 sargas (chapters).
What is the Ramayana? Who wrote the Ramayana? -
Here are answer to your confusion!
In first episode of Uttar Ramayan or Luv Kush Ramayan, Ramanand Sagar Ji said that Goswami Tulsidas Ji ended his Ramayan on Rajyabhishek (Coronation). He was not able to write the story of seperation and Sita Vanvaas but Valmiki has discussed Sita Vanvaas and Uttar Kand in his text and before it's happening. There is no fantasy and Valmiki Ramayan has
7 kandas.