Surprising move: Kim Jong-un's sister signals willingness for talks with Japan. Japan's prime minister wants to visit North Korea.

Kim Yo-jong: She can imagine a "new common future" with the neighboring country. Kim also defended the weapons tests that North Korea has been carrying out for months and which have always been sharply criticized by Japan. Pyongyang has conducted at least five cruise missile tests since the start of the year and reported testing an anti-ship missile as recently as Thursday.