Sezon 0

In a short recap of the first three seasons, Usagi and Luna tell Chibiusa about Usagi's growth as Sailor Moon.

Haruka and Michiru are at a hotel that is being taken over by a puppet and his master. Haruka is feeling sick and unable to battle, so Michiru transforms into Sailor Neptune to destroy the puppet's bottle in order to save Haruka, risking the lives of the hotel guests in the process. Haruka is healed and transforms into Sailor Uranus and defeats the puppet. She then quickly worries about a new enemy, but Michiru assures her that Sailor Moon and the rest will take care of it.

A new student show up in Chibiusa's class named Ririka. Strange things begin to happen — children go missing, flowers die, and the new girl is doing weird things. The Sailor Senshi investigate, and Ririka is revealed to be a vampire. They use an attack on her, and she is released from the spell, only remembering everything as a bad dream.