It is the third time Choi Seunghyun's landed in detention and it's barely October.

For a school where the majority of the students have straight A's and B's and spotless records, this is a shocking thing.

His complicated background, cloaked in shadow and mystery, only adds to the fear and contempt in equal measure.

Rumours circulate.

They say he's a rebel, defiant and derisive. 

He says he's only misunderstood.