Unfortunately, this peace was not to endure forever. The Negaverse - a place of hatred, deceit, cruelty, torment, and evil - was the direct opposite of the universe of the Moon Kingdom. At the core of the Negaverse an entity known as "The Negaforce" (Queen Metalia) grew stronger and more powerful each day. The Negaverse itself was ruled by an evil and vicious being named Queen Beryl. With the help of the Negaforce (Queen Metalia), and the vast armies of the Negaverse, the Queen planned to conquer the entire universe....starting with the Earth and the Moon Kingdom.
During a lunar eclipse, Queen Beryl led her minions to the Moon Kingdom and began a ferocious assault on Queen Serenity's realm. It seemed the battle would end almost as quickly as it had begun. The warriors of the Moon Kingdom were no match for the battle-ready and relentless forces of the Negaverse. Even against overwhelming odds the Moon Kingdom still refused to surrender. Four young powerful girls joined together in an attempt to defend against the Negaforce. However, even their attempt proved futile and in the end there were many casualties. Two of these deaths included the Earth Prince, Prince Endymion, who fought bravely against the Negaverse warriors, and Queen Serenity's only daughter, Princess Serenity.
After the decisive battle, the Negaverse claimed victory. Queen Serenity knew that she could not let the Negaverse control the universe or all would fall into eternal darkness. She drew upon her remaining strength and, using the power of the Ginzuishou(Silver Moon Crystal), purged the universe of it's invaders. Queen Beryl, Metalia, and the great legions of darkness were all sent back to the Negaverse. Queen Serenity also brought her daughter back to life and sent her, along with her court and guardians the Sailor Senshi and the Earth Prince, one thousand years into the future to present-day Earth, where they would be reborn as humans. Queen Serenity gave her life in doing so, allowing her daughter, her people, and her universe to live in peace once again. She knew her precious daughter must live on because she was destined to be the next Queen of the Universe.
