In the arms of a remote village where nature plays its picturesque tunes, the young girl lives with her warm family. Amina begins a heart attack in which she tells the story of her infant brother Rani, who is preparing for an important adventure in his first year, the four vaccination journey. In a manner that combines tenderness and tension, Amina reveals to us a Rani reaction with the first vaccination, and highlights the importance of these moments not only for Rani but for every baby. Through an interesting narration and valuable information, this book gives children an opportunity to understand the importance of vaccinations in protecting children and ensuring their health growth. He joined Amina and Rani in this inspiring story, and discovered the decisive role of vaccinations in the first year of life.