Character Arc
Usagi Tsukino begins the series as a fourteen year old who is late for school, cries easily, and would rather play video games than study. When the cat Luna gives her a magical brooch, she gains the power to transform into Sailor Moon, though at first she is frightened and unsure of herself. Her early adventures are defined by reluctance and comic mishaps as she slowly accepts the responsibility placed upon her.
As the story unfolds, Usagi learns that she is the reincarnation of Princess Serenity of the Moon Kingdom and that her destiny is tied to both the Silver Crystal and to Mamoru Chiba. She gathers the other Sailor Guardians as friends and allies, and her warmth becomes the emotional center that holds the team together. Through repeated trials she discovers reserves of courage and compassion she never knew she had.
By the later arcs Usagi has grown into a true leader who is willing to risk everything to protect the people she loves and the future she glimpses. Her romance with Mamoru and her glimpses of her future daughter Chibiusa give her something to fight for beyond herself. The crybaby of the early episodes becomes a heroine whose defining power is unconditional love.