This book focuses on a juvenile to tell three continuous stories Cherry Blossoms, Astronaut and Five Centimeters per Second, which compose together forming a complete book. This is a story that quietly and slowly enters into your heart. It describes the change and non-change of love, as well as the wander of soul. The world is so beautiful, and the youth is so gorgeous, but the hero of the story is only willing to talk to himself. ""What is the furthest distance in the world""? For the youth who is always living in yesterday, walking out of his inner world, is the most long distance...The story is simple but very real, and can stimulate the silent touch in the deepest corner of heart.