President Moon Jae-in shakes hands with North Korea leader's sister Kim Yo-jong. Yonhap

By Do Je-hae

One of the biggest questions regarding the current impasse on the Korean Peninsula is the silence of North Korean leader Kim Jong-un, in contrast to his sister Kim Yo-jong.

The powerful sister of the North Korean leader said through the nation's state media on Wednesday that she had "completely rejected" the South Korean government's proposal to send special envoys to discuss the situation on the Korean Peninsula.

It is noticeable that it was Kim Yo-jong, not Kim Jong-un, who "disapproved" of the proposal from Cheong Wa Dae to send national security adviser Chung Eui-yong and Suh Hoon, chief of the National Intelligence Service, as envoys to Pyongyang.