This series of children's bedtime fairy tales uses the wanderings of a crow as a clue to tell the story of the battle between good and evil in the animal world, the struggle for supremacy among rivers and lakes, and the legendary journey of a crow to maturity. The full text is divided into 19 episodes, seamlessly connecting animations and fairy tales from the 1970s to today, guiding children to understand good and evil and the power of wisdom, and helping them establish a healthy outlook on life and values.