Gangster Doo-shik has graduated school and is now attending college, though he is allowing his underling Sang-du to take classes on his behalf.

For the final semester, all education majors are sent out to work in schools for teacher training.

This is one job that Doo-shik must complete himself, and he is sent out to teach in the trouble-laden high school himself.

My Boss, My Teacher was released in South Korea on 19 January 2006,[1] and topped the box office on its opening weekend with 1,106,825 admissions.

[2] It held the number-one spot for a second consecutive week,[3] and went on to receive a total of 6,105,431 admissions nationwide,[1] making it the fourth best selling film of 2006,[1] and—until surpassed by 200 Pounds Beauty in early 2007—the most successful Korean comedy film of all time.