Following the story of a middle-aged man who loses everything he once valued. After a long journey, he finds his true self, no longer defined by his job as a manager at a major corporation.Kim Nak Su, a salesman with 25 years of experience. Known for his exceptional skills and sales success, he has never missed a promotion. He owns a prime apartment in Seoul, has a wife and son, and enjoys an enviable life. However, over time, he begins to lose his footing both at work and at home.A heartfelt journey of resilience and survival — one that evokes both tears and laughter in the pursuit of happiness.(Source: Soompi; edited by MDL)~~ Adapted from the novel "Seoul Jagae Daegieop Danineun Kim Bujang Iyagi" (서울 자가에 대기업 다니는 김 부장 이야기) by Song Hui Gu (송희구).