Ji-woo, an outcast at a prestigious private school, meets Hak-sung, the school janitor who is actually a mathematical genius who defected from North...
NYC custodian Daryll Deever is a big fan of local news reporter Tony Sokolow, so he is intrigued when she shows up to cover a story at his workplace....
Oshima Goro, a janitor of an elementary school, becomes a gifted teacher who teaches children that have fallen behind even though he has no licence....