As the lack of a last name and emotion suggests, Korone is an android. More specifically, she is a Liladan, a race of androids sent by the government to observe Akuto 24/7. Despite generally being an emotionless robot, Korone is capable of acting human when she wants to, such as to tease Akuto. She makes her home in the storage closet in Akuto’s dorm and is capable of pulling out numerous firearms and weaponry from her bottomless pit of a handbag. It seems that one of her standard functions is the ability to scan the emotions and power level of anyone around her. To deactivate Korone, simply give her bunny tail a tug.
an extended description!