Mizuno), Sailor Mars (Rei Hino), Sailor Jupiter (Makoto Kino), Sailor Venus (Minako Aino), and a mysterious masked man called Tuxedo Mask (Mamoru Chiba), to whom Usagi is attracted. Later, Usagi and the Sailor Guardians discover that in their previous lives they were members of an ancient Moon Kingdom in a period of time called the Silver Millennium. The Dark Kingdom waged war against them, resulting in the destruction of the Moon Kingdom. It turns out that Sailor Moon herself is Princess Serenity, the Princess of the Moon Kingdom, and that she alone has the power to make the Silver Crystal appear and to use its incredible mystical powers for evil. Meanwhile, Tuxedo Mask is revealed to be Prince Endymion, the first crown prince of the Earth and Serenity's lover in his previous life. After defeating the Four Kings of Heaven (who turn out to have been Prince Endymion's loyal knights in the past) and killing their leader Queen Beryl, the Sailor Guardians confront a brainwashed Endymion and the ruler of the Dark Kingdom — Queen Metaria. To prevent Queen Metaria from spreading darkness all over the Earth, the Guardians sacrifice their lives. Using the power of the Silver Crystal, Sailor Moon destroys Queen Metaria and resurrects her friends. Black Moon After Sailor Moon restores the Earth to normal and prepares to live a normal life again with Mamoru and her friends, a little girl falls from the sky, claiming to have the same name as Usagi, but nicknamed as "Chibiusa" by Usagi and the others. A group of villains called the Black Moon Clan, led by Prince Demande, initiate a series of operations which lead to the abductions of Sailor's Mars, Mercury, and Jupiter while looking for Chibiusa and the Silver Crystal. Chibiusa is revealed to be Sailor Moon's and Tuxedo Mask's daughter from a distant future that has been decimated by the Clan, and is searching for Sailor Moon and the Silver Crystal in order to save her mother. Sailor Moon and her friends accompany Chibiusa to the future, and they meet the Guardian of Time and Chibiusa's friend, Sailor Pluto the Sailor Guardian of Spacetime. After being captured herself Sailor Moon then rescues Mars, Mercury, and Jupiter and together they manage to escape from the Black Moon Clan's headquarters, the planet Nemesis but Chibiusa is manipulated by Demande's advisor and the true mastermind of the Clan, Death Phantom,