Moon has a simple design which appears to be a baby blue waning crescent moon with slanted eyes and a mouth. Her eyes and mouth have a thick dark blue outline as well. She's called Moon, but her name is Luna. Not much is known about the Moon's personality, she openly expresses her love to Caine, even though the feeling isn't mutual, which makes Caine label her as "frisky." The Moon is also the personification of Night in the Digital Circus world.