Act 18. Invasion ~Sailor Venus~ Bishôjo senshi Sêrâ Mûn Crystal : Season 2 Episode 4

With Sailor Mercury, Mars, and Jupiter all in the hands of the Black Moon Clan, Minako suggests that she and Usagi talk to Chibi-Usa directly and get the information they need out of her on their new enemies so that they can rescue their fellow Sailor Senshi and eliminate the Black Moon once and for all. But the last of the Spectre sisters' is resolved to avenge her fallen sisters by turning all humans against the people of the White Moon.