Junon is a character for PriPara Season 3. She is a member of the new unit Triangle along with Pinon and Kanon.
In Episode 98, it is revealed that she is actually the cool Idol form of Non Manaka.
When she first debuts, Junon displays a stoic and cool attitude. She is highly serious and boasts a considerable level of high intelligence. She is competitive towards those she deems a threat, even declaring a contest against SoLaMi♡SMILE and Dressing Pafé after she just debuted. Despite appearing distant, she was able to capture attention with ease from others. She also talks a lot about things that are cool in temperature-for example, she stated that Triangle would "usher in a new Ice Age".
(Source: PriPara Wikia)