Invitation to Terror: Usagi's Night Flight

Having uncovered Sailor Moon's ordinary identity, Sailor Aluminum Siren is desperate to hand a true Star Seed to Sailor Galaxia before her time runs out. She gambles everything on a letter that lures Usagi aboard a domestic flight, where she means to seize the girl's Star Seed in the air. By chance the same plane carries the Three Lights, screening a film of their own, along with the inner guardians who have come to watch it.

Usagi races by taxi across the Rainbow Bridge toward Haneda Airport, hurrying to warn her friends of the danger. Once aloft, Siren reveals herself and tries to draw out Usagi's true Star Seed by hand, forcing everything into the open. Seiya, Yaten, and Taiki transform into the Sailor Starlights to intervene, and Ami, Rei, Makoto, and Minako expose their own upgraded guardian forms. When Siren fails to secure a Star Seed, Galaxia strips away her Galactica Bracelets, and the fallen Animamate dies as Sailor Lead Crow looks on and Sailor Tin Nyanko mocks her grief.

The confrontation introduces the Sailor Stewardesses that Siren commands against Sailor Star Fighter, along with the shadowy debut of Sailor Tin Nyanko. It also stands as the only episode of the whole season in which one of the Animamates fashions a phage to serve her scheme.

The episode is the sole outing to feature the Three Lights' song Unfulfilled Thought: My Friend's Love, heard as the group unveils their Super and Eternal guardian forms. The movie shown during the flight is the very one being made in the following camp-horror episode. Sailor Aluminum Siren's letter closes with a drawing in which she pictures herself as a mermaid.