Planet Ladder (Japanese: プラネット·ラダー, Hepburn: Puranetto Radā) is a Japanese manga series written and illustrated by Yuri Narushima. Appearing as a serial in the shōjo (targeted towards girls) manga magazine Crimson from the March 1998 issue to the May 2003 issue, 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 girl 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 warring universe while finding her true identity.