the main character is secretly the ruler of the streets and hides it from everyone at school, but something goes wrong and she has to come out of hiding and show everyone who she really is.
A detective gets a job to go undercover to a school as a student. Picked for her young looks, they think she will be the perfect fit to this job. Only to get mixed up into unexpected situations, will people become suspicious, or will she be able to complete her mission while going through the motions.