S05E16 - Invasion de l'espace! Sirène entre en scène
Synopsis
Chibi Chibi arrives in this episode. Pluto tells the sailor scouts to just be on guard around her. Chibi Chibi, like Chibiusa, makes Usagi's family believe that she is Usagi's younger sister. Sailor Aluminum siren first appears in this episode. She takes a police guard's star seed, but it wasn't a real star seed. ESM and pluto arrive. ESM uses her starlight honeymoon therapy kiss to return him back to normal. At home, Usagi is dissappointed that she hasn't heard from Mamoru. Then chibi chibi comes in, Usagi asks if she wet her pants while sleeping. Chibi Chibi frowns, Usagi says she can sleep with her. They both fall asleep.