Serena Tsukino is Princess Serenity Crone of the Moon Kingdom. She was born heir to the thrown. She is the middle child of three. Younger sister Selenity, and older brother Mikhail. Princess Serenity would sometimes sneak to see Prince Darien (make link) on Earth, as he did to see her. She loved him ever so much. Nothing came in the way with their love. When Serenity found out that she was going to be a big sister, she didn't really l ike the idea until Queen Selenity showed Serena her little sister, Selena, she felt an overwhelming of protection and love for her. From that day on she made a promise to her mother that she'd protect Selenity no matter what. When the battle against Queen Beryl arose, Serena, and Queen Selenity made sure that Selena was highly protected, so they put her into the core of the Moon so no one would capture her. Little did they know, that they would never see Selena again. When Queen Selenity sent Serena and the others to earth, she made sure none of them had their memories. Even when Serena would become Sailor Moon, she was not told that she was a sibling with 2 other children. Not until now, when Selena showed her figure and Mikhail his. She realized that she was not alone.