A mother with a heart of gold navigates the cutthroat world of private education when her daughter tries to join a celebrity math instructor's class. Jeon Do-yeon, Jung Kyung-ho, Lee Bong-ryeon, Oh Eui-sik, Shin Jae-ha, Roh Yoon-seo, Jang Young-nam Added on Netflix 2023-02-06. Youtube Trailer