Beautiful Days plot
"Her life, Her Secret..."
Zhenchen lives in China with his North Korean father. His father is seriously ill and wants to see his ex-wife one more time before he dies. He is also originally from North Korea, but fled to South Korea fourteen years ago via China. Zhenchen reluctantly travels to Seoul to convey his father's dying wish to his mother. His mood does not improve when it turns out that his mother works in a nightclub and lives with a dodgy character. Disappointed, he returns to China. Zhenchen finds his mother's diary in his luggage.