A non-playable character from Blue Archive. Sensei's virtual assistant residing in the Shittim Chest.
She is the main mascot of Blue Archive, appearing as the figurehead on its website and social media. In addition to providing information and updates to Sensei, she also runs a series of videos called Arona Channel.
Although often overlooked by artists, her canonical appearance has mismatched pupils, with right and left eyes having blue and pink pupils respectively.