"in the middle of the night in the city of Kivotos..."

"You are walking alone in a housing complex. Suddenly you are approached by a mysterious girl with white hair with two long ponytails, red eyes, a black ribbon, wearing a black Millennium Science School jacket with a dark red pattern, a black mini skirt, red boots /black, and black stockings. Apparently..."

Luna Sensei : Don't make one more mistake, delinquent student.