A small umbrella-toting girl settles into the Tsukino home as Usagi's supposed little sister, and two new Animamates inherit Sailor Iron Mouse's Star Seed hunt. A Sailor Stars episode that debuts the mysterious Chibi Chibi.
Main Characters (3)
Summary
A small girl carrying an umbrella turns up at the Tsukino household and settles in as though she were Usagi's little sister. At the same time, two fresh members of the Sailor Animamates step in to take over the harvesting of Star Seeds that had been Sailor Iron Mouse's job.
Key Events
The newcomers, Sailor Aluminum Siren and Sailor Lead Crow, begin their hunt, and a phage called Sailor Cop is sent against the guardians. The mysterious child, later known as Chibi Chibi, makes her debut here, slipping quietly into the family while the new villains open their campaign.
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Notes
This installment hands Sailor Aluminum Siren and Sailor Lead Crow their first speaking parts and brings Sailor Pluto into the main storyline of the final season for the first time. The metal shell around the Sailor Cop phage may be a nod to the Robocop films. A photo of Chibiusa alongside Usagi and Mamoru surfaces once more, in what turns out to be her last cameo in the series.
Frequently Asked Questions
Who is introduced in 'Invaders from Outer Space: The Coming of Siren'?
'Invaders from Outer Space: The Coming of Siren' introduces Chibi Chibi, a small umbrella-carrying girl who settles into the Tsukino household as though she were Usagi's little sister.
Which new villains debut in this episode?
This episode gives Sailor Aluminum Siren and Sailor Lead Crow their first speaking parts as they take over the hunt for Star Seeds that had been Sailor Iron Mouse's job.
What monster of the day appears in this episode?
The phage Sailor Cop, whose metal shell may be a nod to the Robocop films, is sent against the Sailor Guardians in 'Invaders from Outer Space: The Coming of Siren.'
Does Chibiusa appear in this episode?
Chibiusa does not physically appear, but a photo of her alongside Usagi and Mamoru surfaces once more, marking her last cameo in the series.
What role does Sailor Pluto play starting with this episode?
'Invaders from Outer Space: The Coming of Siren' brings Sailor Pluto into the main storyline of the final season for the first time.
Sources & Information
Looking for more on Invaders from Outer Space: The Coming of Siren? The Sailor Moon Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the Sailor Moon anime series, manga, and official materials. Sailor Moon was created by Naoko Takeuchi, published by Kodansha, and animated by Toei Animation. All rights to Sailor Moon and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
Rights holders
- Created byNaoko Takeuchi
- Published byKodansha
- Animated byToei Animation
All rights belong to their respective owners.
Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:
- Movie pages: theatrical posters and key visuals, credited to Toei Animation and Kodansha.
- Game pages: official box art, credited to the game's respective publishers.
- Manga chapter pages: volume covers, credited to Kodansha and Naoko Takeuchi.
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