In Sailor Moon R, the Dark Gate was a mystical gate/portal of evil energy that the Black Moon Clan had attempted to create so that they could fully carry out their plan of having their Evil Black Crystal poured out upon present day Earth.

The first attempt at opening it was carried out by Esmeraude, who planted Dark Henge, which were statues that would grow until they were large enough to open the gate. This attempt failed.

The second attempt at opening the gate was carried out by Wiseman, who had received help from both Black Lady and Prince Demande. It was completely destroyed by the combined abilities of the Silver Crystals of the past and future used by Neo Queen Serenity and Princess Chibiusa.

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