@Abeer_Fatima maybe do a high school genre.. like a school where criminals , mentally unstable , murderers etc kids are in and jk was send there by his parents who didn't want to care of him because they got tired of him and they also use to beat him. If they enrolled jk into that school no one would know what his parents had done to him and... have done more things that only jk know... when jk went there he saw that how everything was so indifferent there .( it's a boys hostel type school ). There was tae who basically is the most powerful student among them. He have power , money and everything but the thing is why is he there? That's what get kook to be curious about and then look tries to talk to him and when the truth will be unfold about tae the puzzle game of kooks story will also be told ( about his parents deeds and what they did to him and others etc ).