They were led by a teacher with a whip in her hand while being watched on surveillance cameras .
It then cuts to two separate lines of male and female students , the latter being led by Lisa and Jessica , marching down a school corridor .
students were led by a teacher with a whip in her hand while being watched on surveillance cameras .
It then cuts to two separate lines of male and female students , the latter being led by Lisa and Jessica , marching down a school corridor .