Long ago, Serenity was the queen of the Moon Kingdom. She had one daughter, Princess Serenity, who was later reborn as Usagi Tsukino on Earth in our present day and she was then known as the champion of Justice, Sailor Moon. The Queen appeared in spirit form and revealed the past to the Sailor Soldiers. She was a peaceful, loving, and wise ruler. She cared so much for her daughter and gave up her own life, by using the Silver Crystal to save her, and the rest of the people on the Moon.