"Sailor Moon" is a popular Japanese anime and manga series that follows the adventures of a teenage girl named Usagi Tsukino. She transforms into the magical warrior Sailor Moon to protect the Earth from evil forces. With her friends, who also become Sailor Guardians, they fight against villains while learning about friendship, love, and courage. The series is known for its colorful characters, including Sailor Mercury, Sailor Mars, and Sailor Jupiter, each with unique powers and personalities. As they battle dark forces, they also navigate the challenges of adolescence, making "Sailor Moon" a beloved story for fans of all ages.