They encounter the studious Ami Mizuno, who awakens as Sailor Mercury; Rei Hino, a local shrine maiden who awakens as Sailor Mars; Makoto Kino, a tall transfer student who awakens as Sailor Jupiter; and Minako Aino, a young aspiring idol who awakens as Sailor Venus, accompanied by her talking feline companion Artemis.
Additionally, they encounter Mamoru Chiba, a high-school student who assists them on occasion as Tuxedo Mask.
During their journey they meet Sailor Pluto, guardian of the Time-Space Door.
Pluto stops the Clan's ruler Prince Demand from destroying the spacetime continuum, leading to her death.
Chibiusa later awakens as a Soldier—Sailor Chibi Moon—and helps Usagi kill Wiseman's true form, Death Phantom.
The third arc revolves around a group of lifeforms called the Death Busters, created by Professor Soichi Tomoe, who seek to transport the entity Pharaoh 90 to Earth to merge with the planet.
As a result, the Soldiers encounter Wiseman and his Black Moon Clan, who are pursuing her.
Chibiusa takes the Soldiers to the future city Crystal Tokyo, where her parents rule as Neo-Queen Serenity and King Endymion.
Toei also developed three animated feature films, a television special, and three short films based on the anime.
A live-action television adaptation, Pretty Guardian Sailor Moon, aired from 2003 to 2004, and a second anime series, Sailor Moon Crystal, began simulcasting in 2014.
The Soldiers kill the Four Kings, who turn out to have been Endymion's guardians who defected in their past lives.
In a final confrontation with the Dark Kingdom, Minako kills Queen Beryl; she and the other Soldiers then sacrifice their lives in an attempt to destroy Queen Metaria.
The franchise has also generated In Minato, Tokyo, a middle-school student named Usagi Tsukino befriends Luna, a talking black cat who gives her a magical brooch enabling her to become Sailor Moon: a soldier destined to save Earth from the forces of evil.