Maa is one of the four major cats in the Aria storyline was adopted as a stray by Alice in the first season. She named her "Maa-kun" because all the cat said was "Maa." Because of Maa's incredibly small blue pupils, she was made Orange Planet's new president, thus everyone now refers to her as President Maa (Maa-shachou).

Maa is the smallest of the company cats. She is mostly white with patches of black and brown fur. She has a great affinity for biting President Aria's belly and does so whenever she can much to President Aria's dismay.