Maris Luna is a pre-made child townie from Oasis Landing who can be seen wandering around town. She can be made playable by asking her to move in.
She could possibly be related to Juniper and Stella Luna from the same world, although this is not stated in her family tree. Like all pre-made Sims from Oasis Landing, she has the Future Sim hidden trait. She has mastered her Advanced Technology skill.