Sailor Moon Volume Nine is a manga with the story and art by Naoko Takeuchi. Kodansha Comics has the North American distribution rights for the manga, and their English adaptation of this volume was released in 2013. Sailor Moon is rated “T” for teens 13 and up; from what I’ve read of this series so far, I would agree with this rating.
The story of the Dead Moon Circus takes up all of Volume Nine, and this story arc will continue into Volume 10. Mamoru keeps collapsing and doesn’t feel well, and an x-ray shows he has “shadows” on his lungs.
Mamoru tries to hide how serious his health issue really is from Usagi. Usagi, meanwhile, has managed to switch bodies with Chibi-Usa, and the Sailor Scouts need to find a way to return the two back to normal.
The Sailor Scouts also find that for some reason, they are unable to transform after the eclipse happens. Over the course of Volume Nine, each Sailor Scout goes through an experience that causes her to regain her transformation abilities. This volume also shows what has happened to Sailor Pluto, Sailor Saturn, Sailor Uranus, and Sailor Neptune after they parted ways with the other Sailor Scouts in Volume Eight.
The identity of the unicorn that Usagi and Chibi-Usa met in Volume Eight is also revealed, and the reader learns what connection the unicorn has with the health issue that Mamoru has been dealing with.
Volume Nine did an incredible job of truly establishing all the pieces for the Dark Moon Circus story arc, especially since this arc was just getting going at the end of Volume Eight. Volume Nine delved a bit into the Dark Moon Circus, and the reader comes to understand a bit more about this new enemy’s motivations.