Golden Agent: True Colors Return

The protagonist, Section Chief Kim, played by So Ji-sub, is Min-ji's father and a North Korean spy. He is dispatched on countless special missions, including 17 operations in North Korea, five double-agent missions in South Korea, and an assassination attempt targeting the Supreme Commander of North Korea. As the top figure on North Korea's blacklist, he is like a ticking time bomb whose existence must be kept secret from South Korea. At the same time, he is a single father raising a daughter, holding a steady job at a small savings bank in South Korea, living an ordinary life.