Kang In-Ho (Gong Yoo) is a newly appointed teacher at a school for the hearing-impaired in Mujin city. On the way to his new job he becomes involved in a minor car accident and takes his car to a local car repair shop. There his already wrecked car is bumped by a woman named Yoo-Jin (Jung Yu-Mi). Yoo-Jin is an employee at the Mujin Human Rights Center.

On the first day at his new school, In-Ho meets the school's principal and director of administration. They are an identical twins. The director of administration asks for a bribe of 50 million WON ($50,000 USD) to work at their school. In-Ho's financial situation is already in dire circumstances. His daughter who is staying with his mother suffers from asthma. In-Ho's wife has passed away. In-Ho makes a phone call to his mother asking for the money. She delivers the 50 million WON by taking out the deposit money for their home.

Source: AsianWiki