Following her mother’s hospitalisation, Soo-hyun makes Yu-ri stay beside her mother and leaves to look for Seon-yul who informs him of her mother’s situation. Soo-hyun goes around looking for him and ends up at his house which she finds open. Curious, Soo-hyun enters his home and coincidently finds a hidden room which leaves her shocked.
She finally realises that Seon-yul has been planning his revenge for longer than she had expected and that he is aware of every little happening in her life. Meanwhile, Su-ho is ready to put his plan into action and get rid of Kim Joon during their news live. However, things take a drastic turn when Hye-geum falls into his hands and Kim Joon presents a picture of Su-ho with Yu-ri right before the live.
Su-ho is frustrated after the live as this is the second time that Kim Joon has stopped his plans. Elsewhere, Kim Joon warns Hye-geum to not try to go against him again and to leave with her son as he will not hesitate to harm a kid if needed to reach his goals. He then meets Seon-yul and takes him to meet the people who once helped save his father.
After the meeting, Seon-yul arrives at the place he once visited with his mother and tells her about his wish for revenge against Soo-hyun. However, his mother stopped him and asked him to not go down that path as she could understand why Soo-hyun did what she did. Now, Seon-yul is back at this place and apologises as he will not be able to stop himself any longer.
Seon-yul then returns home but sees Soo-hyun standing near his house. In the spur of the moment, he speeds up towards her but stops right before his car hits her. Soo-hyun tells him that his mother’s accident was intentional and that he needs to protect her, which is why he needs to stay alert and think straight instead of only focusing on his revenge.
Seon-yul is surprised by this unexpected conversation and comes home to realise that Soo-hyun has seen his secret room. Elsewhere, Soo-hyun returns to the hospital where Su-ho is with her mother. Su-ho tries to stay until Go-eun wakes up but Soo-hyun makes it clear that he is only her son’s father to her.
The next day, Su-ho’s mother finds out about an ongoing gossip about her son having an illicit relationship with Yu-ri and confronts him about the same. Su-ho tells her that it is true which leaves her shocked after which she tells him to get a divorce as soon as possible, but not based on an affair. It would be a scandal that can damage his career.
Elsewhere, Go-eun finally wakes up and Soo-hyun realises that her mother knows about something. Soo-hyun tells her to take care of herself as she is the most important person to her and the mother-daughter duo get emotional. Soo-hyun then comes out to see Yu-ri outside the ward and asks her why she didn’t enter.
Yu-ri then tells her that she may be the reason behind Go-eun’s condition as she recalls how Go-eun found out about Yu-ri being the woman in the picture with Su-ho. Go-eun then made Yu-ri leave after which Seon-yul entered her restaurant and soon Go-eun fainted in front of him. Seon-yul rushed her to the hospital which was simply because of the kindness the woman showed him this whole time.
It was this kindness that stopped him from making Soo-hyun miserable once and for all. Soo-hyun finds out about what Seon-yul did which leaves her confused about his intentions. The next day, Seon-yul is at work when a call from his friend lets him know that his mother is awake and he rushes to the hospital.
Fighting his heart disease, he soon reaches his mother’s room but he is too late as his mother has already passed away. Seon-yul shatters at this sight and apologises to his mother for being late and for having her hold on to life for him this whole time. Seon-yul breaks down in front of her while his friends help him prepare for his mother’s funeral.
Soo-jin then gets her hand on his mother’s cell phone and passes it onto Seon-yul along with clothes for the service. Elsewhere, Soo-hyun gets a call from Tae-ho who tells her about Seon-yul’s mother’s passing. She heads to the funeral home and offers her respects to the dead. Seon-yul is triggered by her visit and asks her if she came there to see his defeated state.
His abrupt actions leave everyone present shocked and bring the episode to an end.