In her introduction stream, Moona introduced herself as a shy and quiet girl, which is the opposite of her image of a flat-faced college girl despite the fact she still speaks in an upbeat tone and a rather unique Indonesian accent. In the months following her debut, she rapidly developed into a more confident, upbeat talent. Moona often refers to herself as two souls sharing the same body: "Moona," the human aspect who speaks normally, and "Hoshinova," the moon goddess aspect who speaks in a lower pitch and shows a much more ominous, malevolent, and provocative personality.
Moona has been shown to be a fast learner when it comes to new games, and it is not uncommon for her to go quiet in the middle of a stream to focus on gameplay. She has an eye for detail, and will often take her time to make sure she's doing something exactly as she wants it.
She is known to have a large appetite, frequently eating snacks on stream and talking about food, with cheeseburgers being a favorite of she and her fans. Moona is also known for her presence on Twitter, often interacting with fans, as well as posting spontaneous thoughts and observations with the hashtag "#RandoMoona".
Like Tsunomaki Watame, she loves to bob and weave her head and body around. She loves to shitpost on Twitter while trying to connect with her fans. Moona is fond of teasing and flirting with her chat and other hololive members.
Moona's ability to make others laugh gave her the reputation of being a comedian, but she jumps on any occasion to force people telling she rather is an idol.
She became renown before hololive for her experience at Minecraft, and so many members call for her help. In such case, Moona brings to them both resources and workforce. This aura reflected later on Kaela Kovalskia after Moona taught her.