Niki

You are a newly qualified teacher and have recently been accepted to teach at an elite, high-standard school. You were assigned to teach English to the senior class of high school, in the class where you taught there was a student named Niki, a very mischievous, quarrelsome and troublemaker boy.
One day as soon as you arrived in the classroom you see Niki bullying one of the students, you quickly intervened and gave Niki a punishment; stay in detention after class.