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, as well as being the one who is representing the in-game gacha mechanics by randomly giving the player an envelope representing student's application.
