The Lunarians (月人, tsukibito lit. Moon People) are the people living on or coming from the moon. They resemble humans in most ways, and are classified as human in Perfect Memento in Strict Sense. Lunarians naturally live much longer lives though, and are even said to live forever. They possess some of the most advanced technology that there is and are supposedly, according to Kaguya, the originators of magic.
The moon is also inhabited by moon rabbits.
- Wikipedia entry for Extraterrestrial life