"It was meant to be a joke but he din't return, all we found was the torch he was carrying along."

 On the 23rd of November 2009, Lee Byunghun was reported missing. It was the same day 15 friends of his gathered at school at night to celebrate his birthday.  They decided to pull a prank on Byunghun and told him to play hide and seek with them. Apparently, Byunghun was one of the hiders and he chose one of the  classrooms as his hiding place. His friends locked him in the classroom for the whole night and one of his friends claimed to have heard him scream and  atempted to unlock him but the others forbade him and opened the classroom in the morning. The door was still locked but when they opened it, there was only  a torch on the ground but the boy was missing.

 Byunghun was found walking along the streets on the 1st of January, 2013. But apprently, his friends claimed that he had changed completely and seem to be  staring into the space everyday, not minding his surroundings at all. His friends started receiving threatening notes from an anonymous source and Byunghun was  immediately suspected. When they did, Byunghun didn't reply but instead, acted like he can't hear anything.

 On his birthday, year 2013, Byunghun did not attened to school but left on his desk was a note saying 'Let's play a game'.