Season 1

Oh Wan-soo, head of NOW Foundation, becomes the target of a shooting while on the way to a fundraiser. Do-yoon, who is investigating his friend's death, comes to her rescue.

Wan-soo witnesses a shocking scene during the fundraiser. After getting intoxicated, she unexpectedly approaches Do-yoon.

Wan-soo refuses to divorce Yongkook, while Tae-ra stands firm beside him. Tensions escalate as the day of the Hwain Group family's photoshoot nears. During the photoshoot, Miran replaces Wan-soo's deceased son with Yongkook's illegitimate child.

Do-yoon worries for Wan-soo's safety as she holds a press conference regarding Hwain Group. He warns that the shooter who targeted her in Manila is within Hwain Group.

Wan-soo departs with Do-yoon after her mother's death. Meanwhile, Do-yoon investigates "Palseongbok," a key location regarding the Hwain Group's slush fund.

While returning from the welfare center, Do-yoon narrowly saves Wan-soo's life from an explosion. Wan-soo asks for Do-yoon's help to retrieve the original copy of the NOW Foundation's ledger to catch the culprit within Hwain Group.

Wan-soo's brother gets arrested for embezzlement. Wan-soo visits Busan under Do-yoon's protection, but faces another attack.

Furious over the scandal fabricated by his mother, Yong-kook vents his long-standing anger at his mother. Meanwhile, the former chairman's will is disclosed, shocking everyone.

The former chairman's will sparks a clash. Meanwhile, Wan-soo's brother gets into an accident while Mi-ran faces a prosecution summons. The mysteries surrounding the former chairman's death unravel.

Mi-ran goes into custody. Meanwhile, a shooting takes place, and Wan-soo is implicated as a suspect. The mastermind behind it all is revealed.