黃金主渴望一圓天倫夢，似乎找到了失散已久的女兒。姜南順得知自己身世的真相，準備啟程前往韓國。

南順在韓國尋找自己的親生父母，卻遭遇重重阻礙。金主剛尋回至親，但總覺得這個「女兒」不太對勁。

漢江發生的意外讓許多人注意到南順。康熙植與南順相處之後，開始拼湊起她的身世。

南順在驚險場合與闊別已久的至親重逢後，與親生家庭的感情也變得更緊密。熙植深入調查毒品案，南順助他一臂之力。

南順在協助熙植調查毒品案的過程中，意外與危險人物柳施吾交手。李華慈籌畫對南順的復仇大計。

熙植目睹小隊長接觸到毒品，藥效令人觸目驚心。南順持續蒐證，引來對手的注意。

金主拜訪施吾，希望調查有所進展，但施吾也不是省油的燈。南順和熙植越走越近，她的家人趁一場慶生晚餐席間問個明白。

施吾把南順帶進他的圈子裡，熙植不禁開始為南順感到擔心。金主深入試探一個可疑的生意人。

南順大膽行竊，讓施吾陷入高度警戒。在氣氛緊繃的會議上，金主質疑施吾，讓施吾開始構思復仇計畫。

The drug infiltrates Nam-soon's family — prompting a search of the source and an antidote. A mourning Hee-sik furiously goes after Si-o's inner circle.

Si-o learns of Geum-ju's ruse and decides to expand his target. As the drug case becomes more intense, Hee-sik asks Nam-soon to move in with him.

To find out Nam-soon's identity, Si-o narrows down his search and goes after her family. Hee-sik faces harsh discipline after news of the drug goes wide.

Si-o vows revenge after discovering the truth about Nam-soon. While Hee-sik continues his investigation, Nam-soon and her family go on a trip to Busan.

Mourning the loss of Hwa-ja, Nam-soon directly challenges Si-o. But he refuses to lose, forcing her to endure incredible pain to save her adopted mother.

With Nam-soon on the brink of death — Hee-sik rushes to find an antidote. Nam-soon faces Si-o once again, but witnesses a surprising turn.