"Usagi Tsukino is a normal girl until she meets up with Luna, a talking cat, who tells her that she is Sailor Moon. As Sailor Moon, Usagi must fight evils and enforce justice, in the name of the Moon and the mysterious Moon Princess. She meets other girls destined to be Sailor Senshi (Sailor Scouts), and together, they fight the forces of evil"--Publisher's website.… (more)
Do not combine the original print with the shinsouban. The original print for Sailor Moon has 18 volumes and the reprints (shinsouban: 新装版) have the chapters regrouped to complete in 12 volumes. Volume 3 for the original print contains Acts 10-12, while Volume 3 for the shinsouban contains Acts 12-16.
Information from the German Common Knowledge. Edit to localize it to your language.