Policeman and Me (2017)

Sixteen-year-old Kako Motoya is a high school Freshman and single. She attends an adult dating mixer under the pretense that she is older than she really is. There she meets a man and soon finds out he is a cop. He is interested. She is still interested despite his being a cop. There is a problem however. It is not her parents. It is that the relationship is illegal. Where there is a will there is a way.