The title "The Promised Neverland" signifies the main setting of the story, which is an orphanage called Grace Field House. The children living there believe they are being sent to a wondrous place known as the "Promised Land" when they leave the orphanage, but they soon discover the dark truth behind their supposed paradise. This title sets the tone for the series, highlighting the contrast between the children's hopeful expectations and the harsh reality they actually face.