One of the causes of bullying cases among school students is the influence of negative peers. These symptoms are attributable to peers because, in this age, teens prefer their peers in their lives. Usually, this group of students has a self-established group to take care of the interests of their respective members. According to Bradshaw, Sawyer, and O’ Brennan, there are approximately 30% of young people admitted to bullies others in a survey. Therefore, students should be smart and wise in choosing their peers so that they do not mistakenly befriend with bad people. This is because their friends are the reflection of themselves. If their friends are well behaved, then their attitude will be good. The active involvement of student groups in associations such as the Prevention of Crime Association will make the student avoid unnatural social symptoms.