Valeria, a young woman scientist, seeks to demonstrate the existence of a type of energy typical of living beings, struggling with the rigid system of beliefs in a scientific world ruled by men.
Zuo Cuiping, narrates of the story of the origins of Xilankapu. As the last inheritor of the Xilankapu, if her technique is not learned by next generation the last branch of this intangible cultural heritage will be broken.
Carlos travels to the place of his childhood and there he remembers those adventurous and dangerous afternoons he used to spend with Mateo, his best friend. A friendship that was put to the test and that one day he lost without much explanation, but he always hopes to find it again.
