Han Jae-hyun (Yoo Ji-tae) and Yoon Ji-soo (Lee Bo-young) met and fell in love when they were university students. Twenty years later, they cross paths once again: Jae-hyun has become a successful businessman who pursues wealth and honor, while Ji-soo is a mother and a contract worker living a difficult life.
The Vice-President of Hyung Sung Corporation. He is seen as a labor union turncoat when in actuality, he joined Hyung Song Corporation to take revenge on those who betrayed and framed his father for illegal dissolution of labor unions that eventually led to his suicide.
He is Ji-soo's father and a former Chief Prosecutor of the Seoul Central District Prosecutor's Office. He was fired from his job after admitting to abusing his power and taking bribes.
Lee Jong-nam as Jung Sook-hee
Ji-soo's mother. She died after the department store she was in collapsed. She was in the department store with Ji-young to buy a gift and cake for Ji-soo's birthday.
Ji-soo's son. He attends an international school on a scholarship but left on his own accord. He finds custody under his mother more comfortable than his father's.
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.
This drama aired on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC and EBS).
^Lee, Ji-hyun (7 February 2020). ""방법→비밀의숲2" 2020년 tvN 드라마 더욱 강력해졌다". chosun.com (in Korean). News Chosun. Archived from the original on 7 February 2020. Retrieved 4 April 2020.