All About My Romance (2013)

Kim Sooyoung is a judge who decides to join the challenging world of politics in order to rectify it. He wins an election and becomes a congressman, but rather than make things right, he's always criticized for his behavior and becomes the ugly duckling of the Great Korea Party. Seeing them up close, he realizes that politicians are even more pathetic than he initially thought and decides to call it quits. But on the day his party is secretly passing the press laws, he is hit on the head with a fire extinguisher by No Minyoung of the Green Justice Party. She used to have zero interest in politics until her sister, who was considered to be a presidential candidate, died in a freak car accident with just 6 months to go until the presidential elections. This motivates Minyoung to get into politics. After she accidentally hits Sooyoung on the head with a fire extinguisher, the two of them become the most recognized politicians in all of Korea.