Sonyosang (girl statue in Korean) is a bronze statue symbolizing “comfort women,” the estimated 80,000 to 200,000 women physically, mentally, and sexually exploited by the Japanese Empire during WWII. As a backlash against the 2015 ″comfort women” agreement between the South Korean and Japanese governments, Koreans have installed 384 girl statues across South Korea. Based on ethnographic research that I conducted in South Korea between 2019 and 2021, including in-depth interviews with Korean activists who raised funds for or participated in creating, installing, and managing girl statues in South Korea, this research examines how the girl statue movement in South Korea has developed into a left-wing nationalist-populist movement and how affective identification with the statue generates a populist identity. To this end, this research firstly discusses how former President Park Geun-hye's undemocratic political measures recall the memory of minjungism (Korean populism) that led the pro-democracy movement in the 1980s, enabling Korean nationalist leftists' demands to form a chain of equivalence in the girl statue movement. Secondly, relying on Melanie Klein's theory of identification, this article examines how the ‘people’ is constituted through affective forms of identification with the girl statue. By doing so, this article demonstrates that the growth of the girl statue movement into a left-wing nationalist-populist movement blurs boundaries between the psychological, the personal, the national, and the (geo)political.