Photo taken on Jan 3, 2017 shows the trial site in Seoul, South Korea. The first trial on a parliamentary motion to impeach South Korean President Park Geun-hye ended just in nine minutes on Tuesday with Park, the principal of the trial, not in attendance. [Photo/Xinhua]

Given that the scandal-scarred president has refuted all charges against her, a stiff court battle is forecast to come about. Park's legal team said she will not attend any of the remaining pleading sessions.

With Park's refusal to testify, the first hearing ended just 9 minutes after kicking off at 2:00 p.m. local time. All of the nine justices sat on the bench, with the plaintiff and the defense showing up on either side of the courtroom, TV footage showed.

By law, the constitutional court is allowed to continue legal proceedings in the next session unless the principal of a trial appears.

The second date for pleading was set on Thursday to question four former secretaries to President Park. The third will be held next Tuesday to grill two senior presidential advisors and Choi Soon-sil, Park's longtime confidante at the center of the influence-peddling scandal, as witnesses.

The trial to deliberate the impeachment can last up to 180 days, but it is expected to reach a final conclusion as early as late February. A majority of South Koreans are pressing the court to make a quick ruling.

The motion to impeach President Park was passed in the National Assembly by an overwhelming majority on Dec 9. If the court upholds it, an election must be held within 60 days to replace the impeached leader.

Park Han-chul, the court's chief justice, issued his unusual comments in the courtroom, saying he and his fellow judges will make their best endeavors to "sternly and fairly" deliberate on it.

The judges have duly recognized the graveness of this case, he said, as well as the crisis of power vacuum caused by the suspended president, indicating the fast proceedings in the court.

The chief justice, who is set to end his tenure in late January, is expected to speed up the proceedings given that judges taking honor seriously are highly likely to want deliberation on the historic case during their terms.

However, a fierce legal battle will come about in the courtroom as President Park and her legal team flatly refute all charges against her.