Yoon Jae-Hee is the second daughter-in-law of the chaebol family who runs the Sungjin Group. She works at art gallery Space Jin. In the past, she had a boyfriend she dated for years, but she dumped him to marry Jung Joon-Hyeok. Jung Joon-Hyeok was born out of wedlock to the chaebol family. Yoon Jae-Hee wants to make her husband the South Korean president. For that, she cooperates with the next public prosecutor general and she begins a war against her in-laws.