Luna is a black cat with a distinctive crescent moon mark on her forehead who serves as a mentor and advisor to Usagi Tsukino, the reincarnation of Princess Serenity. In the anime Sailor Moon SuperS, she continues to support the Sailor Guardians while also dealing with her own personal relationships and discoveries. Her background originates in the Silver Millennium, where she was a servant to Princess Serenity and an advisor to Queen Serenity. When the Moon Kingdom fell, she and her partner Artemis were placed into a long sleep and sent to Earth to locate and awaken the reincarnated Sailor Guardians, with part of her memory suppressed to make her task easier. During the SuperS season, Luna acts as a constant source of guidance for Usagi and the other Guardians, though her advice is sometimes unwanted and leads to comedic friction. Her motivations are rooted in protecting the future and helping the Sailors fulfill their destinies, especially as they face the Dead Moon Circus led by Queen Nehelenia. A notable subplot in SuperS involves her relationship with Artemis, which is tested when a mysterious gray kitten named Diana appears, claiming to be their daughter from the future. This revelation deepens Luna’s connection to Artemis and introduces a family dynamic that continues through the series. Luna also develops a close friendship with Ami Mizuno and often shows a caring side beneath her stern demeanor. In terms of abilities, Luna can speak and communicate with humans, materialize magical items such as transformation brooches and weapons, and access advanced technology. Though she primarily appears as a cat throughout SuperS, she has the latent ability to transform into a human form, which is first depicted in the film Sailor Moon S: The Movie and appears later in other media, though not in the SuperS television episodes themselves. In the live-action series, she transforms into Sailor Luna, but that incarnation is separate from the anime. Within SuperS, her role remains that of a strategist, caretaker, and emotional anchor for the team, helping them navigate the challenges of the Dream arc without ever taking center stage in battle.