20th single release from Asami Imai. Title track is the intro theme to TV anime "Pastel Memories". Includes PlayPASS compatible original mini card featuring a photo of Asami Imai (common card for 10th Anniversary Edition and Regular Edition) 10th Anniversary Edition comes with a music video and making-of "Believe in Sky" and message from Asami on DVD. Includes a history book featuring Asami's works over the 10 years in her music career. Newly shot cover artwork.