The sister of North Korean leader Kim Jong-un made clear that her regime will never accept the South Korean government's "audacious initiative" that seeks to help Pyongyang improve its economy in return for denuclearization steps, according to state media Friday, Yonhap reported.

Kim Yo-jong dismissed South Korean President Yoon Suk-yeol administration's aforesaid plan.

His scheme is "the height of absurdity as it is an impracticable one to create mulberry fields in the dark blue ocean," said Kim, who is known to be in charge of inter-Korean affairs as vice department director of the Central Committee of the Workers' Party of Korea.

"Though he may knock at the door with what large plan in the future as his 'bold plan' does not work, we make it clear that we will not sit face to face with him," she said.