Bye Bye, Earth is a Japanese fantasy novel series written by Tow Ubukata and illustrated by Yoshitaka Amano. Kadokawa Shoten have published two volumes in December 2000. A new edition illustrated by Hyung-Tae Kim was published by Kadokawa Shoten in four volumes between September 2007 and February 2008 under their Kadokawa Bunko imprint. A manga adaptation illustrated by Ryū Asahi was serialized in Shōnen Gahōsha's seinen manga magazine Young King OURs from January 2020 to July 2022, with its chapters collected into four tankōbon volumes. An anime television series adaptation produced by Liden Films aired from July to September 2024, with the second season aired from April to June 2025.