CBD is not a narcotic substance; European Decree no. 639-2014 and European Regulation no. 1307/2013 confirm that it is legal to buy CBD in Ciudad Real when its THC concentration does not exceed 0.2%.
This is a European regulation, so it applies whether you are in Alcázar de San Juan, Villanueva de los Infantes, Argamasilla de Alba, Almagro, San José del Valle, Alcoba de los Montes, Alcolea de Calatrava, Alcubillas, Aldea del Rey, Almadén, Cañada de Calatrava, Almadén, Santa Cruz de Mudela, Villamanrique, Villanueva de los Infantes, Villarrubia de los Ojos, Villarta de San Juan, Viso del Marqués, Campo de Criptana, Argamasilla de Alba, La Solana, Socuéllamos, Puertollano, Puebla del Príncipe, Poblete, Porzuna, Pedro Muñoz, Moral de Calatrava, Picón, Miguelturra, Montiel, Navalpino, Navas de Estena, Luciana, Hinojosas de Calatrava, Herencia, Granátula de Calatrava, Daimiel, Cózar, or Alamillo.
If you want to avoid legal problems (and buy quality CBD), it is best to turn to those who can guarantee buds with THC levels below the established limit.