The little girl (Don-gu) sp? who keeps claiming she's been a detective's daughter for 7 years. Her dad is guess what? A detective. He must have power too, the gangsters who came to stop Hyunse from attending the hearing all ran when they saw him.
Did the school facilities manager get injured off the job? He's still wearing that cast, and I can't believe it's just from polishing wood, like he claimed in one of the episodes.