This is a set of picture books that cultivate children's sense of security and happiness. It is a story for all children and parents - how to establish a positive parent-child relationship? What are friends? What does it mean to grow up? How to overcome fear? How to love others? The author vividly captures children's psychology in a surprising and humorous way, showing real moments of growth and parent-child relationship. Warm stories allow children to feel their parents' love and support; and parents can also understand the wisdom of parenting through resonant stories.