Ami Mizuno, also known as Sailor Mercury, is a fictional character from the popular anime and manga series Sailor Moon. She is a member of the Sailor Senshi, a group of magical girls who protect the Earth from evil forces. Ami is characterized by her intelligence, often being the smartest member of the team, and she possesses the ability to control water and ice. In the series, Ami is depicted as a shy and studious girl who excels in academics. Her alter ego, Sailor Mercury, uses her powers to gather information and analyze situations during battles. She is known for her blue hair and distinctive blue and white costume, which reflects her connection to water.