Moon Jae-in of the liberal Minjoo Party waves during a celebration event in Seoul Keanu Neal Jersey , South Korea, on May 9, 2017. Liberal candidate Moon Jae-in of the Minjoo Party said Tuesday that South Korea's presidential election is "a great victory of great people" after most of local media outlets viewed his victory as assured. (XinhuaYao Qilin) SEOUL, May 10 (Xinhua) -- Liberal Moon Jae-in has won a landslide victory in a South Korean presidential by-election amid growing hopes for a new society following the impeachment of his predecessor over corruption scandal.
Moon of the biggest Minjoo Party gained a 41.1-percent support, defeating his two main rivals by a large margin, according to the final results released by the national election commission on Wednesday.
It can be seen as a sweeping victory given the five-way presidential race.
The country's incoming president celebrated with jubilant supporters gathering at the Gwanghwamun square in central Seoul around midnight as Moon's victory was assured by local media outlets in an early stage of vote count.
In the televised speech, Moon told supporters that he would become a president for all the people from Wednesday, and he would become a president of unity, caring about those who did not support him in the election.
This election was "a great victory of great people," said Moon who pledged to become a proud president of the Republic of Korea (ROK) that is great, righteous and confident. The ROK is an official name of South Korea.
Before the speech, he told reporters at his party's building that he would achieve the two main goals of reform and unity as people had wished for.
Reform and national unity will be high on the agenda under the Moon administration.
People demand reform on conglomerates, called chaebol here, prosecutors governed by the presidential power and inequalities of income and wealth, which are seen by many as the most urgent issue that should be tackled immediately.