Usagi and the girls get into an argument over who gets to play Snow White in the upcoming play with Mamoru. After drawing straws, Natsumi gets the part, much to Usagi's frustration.
Ami and Makoto are trying to figure out who exactly the Moonlight Knight is. Suspecting that Seijuro and the Moonlight Knight may be the same person, Makoto volunteers to investigate by getting closer to Seijuro.
A school festival is going to be held at T.A. Girls' Academy, which Rei attends. When Usagi and Ami go to check up on her, they find Rei busy overseeing the setup and events.
Usagi goes to a virtual reality arcade that has just opened up in the Juban District, where she unexpectedly runs into Mamoru, as well as Seijuro and Natsumi.
Usagi, Mako, and Ami see a boy being attacked by one of Ail and An's Cardian monsters. To Mako's surprise, the boy turns out to be her childhood friend Shinozaki.
Two months have passed since the Sailor Guardians defeated the Dark Kingdom. Having lost all memory of being Sailor Moon, Usagi now lives her life as an ordinary girl.
Sailor Moon confronts Queen Beryl's Endymion. She attempts to free Endymion from Queen Beryl's control, but his brainwashing cannot be undone. With the fate of the world hanging in the balance, Sailor Moon is forced to fight the man she loves.
The Sailor Guardians head out into the Arctic Circle. Having anticipated their arrival, Queen Beryl sends the DD Girls, who ambush them. To Sailor Moon's horror, the Sailor Guardians fall one after another as they try to defeat the DD Girls.
Sailor Venus finds the Dark Kingdom's hideout. The Sailor Guardians fall into Kunzite's trap, which hurls them into the past. The girls find themselves in a world called Silver Millennium, where they meet Queen Serenity, the mother from Usagi's past life.
Sailor Moon and the other Sailor Guardians appear to have a falling-out. But it's all part of the plan to locate the enemy's hideout. Also, a nosy journalist named Nana Asahina, who they suspect is a monster, approaches them.
Grandpa Hino has become emotionally unstable, causing Rei to worry. The new apprentice Yuichiro tries to cheer her up by blaming Grandpa's behavior on the weather. Realizing that Yuichiro likes Rei, Usagi tries to help their relationship along.
Usagi and Makoto are shocked to discover their crush Motoki has a girlfriend named Reika. His relationship is in jeopardy, however, due to Reika's chance to study abroad. With nothing to lose, Usagi and Makoto aggressively go after Motoki's affection.
Usagi and Naru attend an art exhibit by Yumemi Yumeno, whose works are known for helping people find love. Usagi is surprised when she and Mamoru, who also happen to be at the exhibit, are both asked by Yumemi to become models for her latest painting.
Usagi learns that a transfer student named Ryo Urawa seems to have a crush on Ami, and tries to help him out. But Ryo, who secretly possesses the ability to foresee the future, finds out that he is destined to fight Ami as a Monster.
The Sailor Guardians grow in strength with its newest member Sailor Jupiter joining the team. Sailor Moon is appointed as team leader and is handed the Moon Stick, an item that can locate the seven Rainbow Crystals.
A new girl named Makoto Kino transfers to Usagi's school, but her tough attitude seems to scare everyone away. Usagi, however, quickly becomes friends with her. Meanwhile, the Dark Kingdom is plotting to revive the Seven Great Monsters.
Nephrite uncovers Sailor Moon's true identity as Usagi Tsukino. But his attempt to finish her off is cut short when he learns that Naru has been kidnapped by Zoisite, who demands that Nephrite give up his Dark Crystal in exchange for the girl's safety.
Naru has fallen in love with Masato Sanjoin. Knowing that Sanjoin is really Nephrite, Usagi tries to convince Naru to give up on her feelings without having her learn the truth.
The Kingdom of Diamonds is hosting a party at the embassy to reveal their royal treasure to the world. Believing that the treasure may be the Legendary Silver Crystal, both the Sailor Guardians and the Dark Kingdom crash the party to find out.
Ami spots Nephrite on the street and follows him down to an animation studio that is making the upcoming Sailor V movie. Suspecting that Nephrite is up to no good, Ami calls Usagi and Rei so they can investigate the studio.