She is the sister of Sun and Moon. As well as being an adopted sister to Lunar. Earth is more motherly and has better security protocols than Moon ever did. She has mainly been shown comforting or talking to people, mostly Sun. Though she is quite confused about the situation at hand. She tries her best to help both of her brothers, while also running Daycare alongside the two of them. she's also a great therapist, She recently started a channel with Lunar.