The Infiltration and Kim Jong-il Meeting: Park succeeds in building trust with Ri Myung-woon through an elaborate cover story: a joint South-North project to film commercial advertisements at historic sites like Mount Kumgang. This grants him direct access to North Korean territory, where he meets Kim Jong-il to secure approval.
The Central Twist (The "Wind from the North" Conspiracy): As the 1997 South Korean presidential election nears, ANSP Director Choi Hak-sung realizes liberal opposition leader Kim Dae-jung might win. To engineer a conservative victory, Choi and South Korean ruling party officials meet secretly with North Korean military officers in Beijing, offering millions of dollars in cash if the North stages an armed artillery attack along the DMZ to stoke voter fear.
Park's Defiance: Realizing that his own intelligence agency is willing to risk an all-out war to rig an election, Park breaks operational protocol. He approaches Ri Myung-woon, revealing the secret plot and convincing him that military aggression will backfire and further isolate North Korea. Ri arranges an audience with Kim Jong-il and convinces the supreme leader to cancel the planned DMZ bombardment.
The Betrayal and Escape: In retaliation for sabotaging their plan, the ANSP leaks Black Venus's real identity to the press to discredit the incoming administration and leave Park stranded in North Korea. However, Ri chooses personal honor over party loyalty: knowing Park is a South Korean spy, Ri issues him an emergency travel pass and escorts him to the airport to ensure his safe return.
The Ending (2005 Reunion): Years later, following imprisonment and the normalization of cultural exchanges, Park attends a joint cultural event in Shanghai in 2005 where South Korean pop star Lee Hyori is filming a commercial with North Korean dancer Cho Myung-ae. Across the crowded hall, Park and Ri spot each other. Without exchanging words, Ri subtly pulls back his sleeve to reveal the Rolex watch Park gave him, and Park lifts his jacket to reveal the tie pin Ri gifted him—a quiet, powerful confirmation of their unbroken bond.