For the next 13 days, 55 candidates will be on the campaign trail, battling it out for the 15 vacant parliamentary seats that are up for grabs in the July 30th by-elections.
Six of the 15 seats are located in Seoul and Gyeonggi-do province.
Two are in the Gyeongsang-do provinces, four in the Jeolla-do provinces, while the remaining three are in the Chungcheong-do provinces.
The ruling Saenuri Party is vying to secure a majority of parliamentary seats through the by-elections, fielding candidates in all 15 races.
Seoul's Dongjak-B district is considered strategically important to both rival parties as it's the only vacant Assembly seat in Seoul.
"If given the chance, I will use the lessons I've learned from running the Dongjak-gu district and make sure the National Assembly is working toward improving the livelihoods of the people."
With no clear winner in last month's local elections, main opposition party candidate Ki Dong-min emphasized the importance of victory.
"The New Politics Alliance for Democracy must win in all 15 districts, including Seoul's Dongjak-B constituency, to make a statement against the Park Geun-hye administration's arrogance and stubbornness."
During the campaign period, the Saenuri Party is expected to distance itself from President Park Geun-hye and put more of an emphasis on the candidates' capabilities.
"The main opposition party will focus on the government's mishandling of April's ferry tragedy, and present alternatives to the ruling party's policies.
Ji Myung-kil, Arirang News."