A new book by Japanese journalist Yoji Gomi reveals surprising details about Ko Yong-hui, the late mother of North Korean leader Kim Jong-un. The book uncovers her family’s roots in Japan, including her father’s history as a smuggler who later fled to North Korea. These revelations are particularly sensitive because Kim Jong-un has worked hard to keep his family’s past—especially his mother’s background—under wraps.

Editor’s Note: This isn’t just a historical deep dive—it’s a rare peek into the carefully guarded personal history of one of the world’s most secretive leaders. Understanding Kim Jong-un’s family background could offer clues about his motivations and the regime’s inner workings. Plus, it’s a reminder of how much North Korea’s leadership relies on controlling its own narrative.