Katsura Masakazu × Toriyama Akira Collaborative Short Story Collection: Katsura Akira

​1. Sachie-chan Guu!! - Published in the Jump SQ. 2008 May Issue.
The story of Sachie-chan, an adventuress who travels all over the Galaxy!

2-4. JIYA - Published in Young Jump 2010 No. 2&3, No. 4&5, and No. 6.
Jiya is an alien and a galaxy patrol member on a mission to Earth. His first encounter with humankind is rescuing a rich party girl, Kaede, and her chauffeur Kyuumonji Yukio from mountain bandits. Using Kyuumonji's body as a host, Jiya is going to check out rumors of a recent infestation of "vampires" on Earth that are attacking beautiful young women.