The school health teacher's twin sons are a pair of notorious clean freaks. They are known for their strict disciplinary actions and surprise health inspections to ensure that the students always pay attention to their personal hygiene and grooming. The older brother, Anthony, is cold and strict; and the younger twin Andrew is a soft-spoken and gentle boy. One day, Anthony punishes Joni's classmate Alex with a demerit. Finding this highly unfair, Joni begins plotting to teach Anthony a lesson...