President Lee Jae Myung believes it is up to the National Assembly to decide the direction of a constitutional revision, a presidential official said Friday, adding the president sees problems arising from the country's governing system that rests too much power on the president.

The remarks follow a report the previous day that Lee raised the need for a constitutional revision to reform the presidency while recently playing golf with ruling and opposition lawmakers.

The official noted that Lee believes a four-year, two-term presidential system may be most acceptable to the public and could help offset the limitations of the all-powerful presidential system.

"(Lee believes) a four-year, two-term presidential system that strengthens the power of the National Assembly is most likely to be acceptable to the public," the official said.

Still, he believes a constitutional reform should be discussed and pursed by the National Assembly, as it would require the consent of at least 200 of the total 300 lawmakers.

"The president's position is that a constitutional reform should be pursued through (bipartisan) consent," the official said, calling it Lee's long-standing stance on constitutional reform.