Planet Ladder(プラネット·ラダーPuranetto Radā) is a fantasy science-fiction shōjo manga written and illustrated by Yuri Narushima. Appearing as a serial in the Japanese manga magazine Crimson from March 1998 to May 2003, the chapters of Planet Ladder were published by Sobisha/Shueisha in seven tankōbon volumes from December 1998 to May 2004. Based on the Japanese folktale The Tale of the Bamboo Cutter in which a young girl named Kaguya-Hime is discovered to be the princess of the moon, the story focuses on a teenager named Kaguya, who is prophesied to save only one of the nine parallel worlds, and her quest to bring peace to a waring universe while finding her true identity.