You might be interested in this: https://archive.org/details/my-life-and-faith-eng/

Memoirs of a Korean who grew up under Japanese occupation, got radicalized as a young teen and became a revolutionary, lived in the newly formed DPRK, then became a war correspondent, later got captured and spent 40 years being tortured in south Korean prison, and was eventually released and he returned to DPRK. It's his memoir but it also serves as an overview of recent Korean history starting from the Japanese occupation period.