Soo-hyun is struck by Yu-ri’s betrayal and recalls the time when Yu-ri became part of her family. Recalling all the good times with her sister, Soo-hyun cannot digest the betrayal she has faced from the two people she trusted the most.
Meanwhile, Soo hyun’s mother Go-eun arrives at Yu-ri’s boutique to see her being beaten by a woman. She hurries to save her and realizes that the woman is Yu-ri’s biological mother. She pushes the woman away from Yu-ri but the Yuri’s mother mocks her for being foolish and not realising what has been happening behind her back.
She then slips a picture inside Yu-ri’s pocket and leaves from there. Seol hyun observes the events from afar and hands over the promised money to the woman for her work. Meanwhile, Soo-hyun comes out to see her mother consoling Yu-ri and asks her to leave. She assures her she will take care of everything and makes Go-eun leave the store. Elsewhere, Seol hyun has sent a picture of the store to Su-ho, letting him know of his location.
Su-ho rushes to the store while Yu-ri tries to calm herself in the washroom. She then recalls the picture the woman slipped into her pocket and reaches to see that it is a picture of the mistake she committed with Su-ho. She tries to calm herself and keep this secret hidden after which she leaves.
On the other hand, Su-ho rushes to the store where he comes across Yu-ri’s mother and later Seol hyun. The two make a brief eye contact after which Seol hyun’s eyes land on Yu-ri and he walks past her while making sure that Su-ho has his eyes on them. Later, Yu-ri returns to her office where she tries to keep her calm in front of Soo-hyun.
However, Soo-hyun doesn’t waste her time and confronts Yu ri that she is aware of the truth and everything that happened between her and Su-ho. Yu-ri is shocked while Soo-hyun tells her that she is not ready to face her right now and cannot forgive her for what she did. She needs time to clear her head and upon saying this she walks away.
Soo-hyun drives away to a parking lot where she recalls all the moments spent with Yu-ri upon her return from prison. However, all those moments now seem fake to her as the one who smiled at her this whole time had stabbed her back a long time ago. Soo-hyun cries her heart out because of the two while Seol hyun observes her from afar.
He then meets his friends and celebrates his first victory while Su-ho finds out that Soo-hyun has found the truth. He then heads home where Soo-hyun waits for him. Su-ho gets on his knees to apologise to her but Soo-hyun only blames him for returning even after she let go of him. She is completely distressed by what they have done when she was going through her hardest times.
She continues to fault him for returning after committing this crime and now finds it hard to accept that she was already looking forward to the three living a happy life together. Su-ho apologises to her but Soo-hyun tells him that it is too late as he has ruined everything and no longer belongs to her.
Soo-hyun walks away from there and looks back to her happy life which is replaced with images of her husband with her sister. Elsewhere, Yu-ri is in distress and is reminded of the night when everything went down the path of ruin for the trio.
She then calls her biological mother to talk things out when Soo-hyun arrives to meet the woman and makes her hang up.
Soo-hyun walks to Yuri’s biological and warns her to stay away from Yu-ri as she will not let her mess with Yu-ri. The woman is shocked while Soo-hyun makes it clear that she will not be able to get anything out of the sisters from the blackmail.
She then goes to meet Seol hyun and makes it clear that she will not break anytime soon.She once again makes it clear that she does not regret what happened years back and will stand strong against his actions. As Soo-hyun walks away after saying this, Seol hyun is relieved that he can go ahead with his plan without feeling guilty.
Meanwhile, Su-ho makes plans to meet Seol hyun and arrives at his workplace.
He tells Seol hyun to stay away from Soo-hyun and come to him for revenge. Su-ho is ready to give it all up if he can shield his wife and pleads with Seol hyun to change his target. However, his words don’t affect Seol hyun as he is fixated on extracting his revenge from Soo-hyun.
The next day, Su-ho teams up with Hye-geum and prepares to drop a bomb on Kim Joon on the day of his interview with Su-ho. However, Seol hyun has already alerted Kim Joon about this and sent across information that is bound to get them in trouble.
Elsewhere, Soo-hyun finally meets Yu-ri and tells her that she has no plans to abandon her as long as she is her mother’s daughter. She is not willing to hurt her mother again and is ready to put up with Yu-ri.
On the other hand, Seol hyun is ready to make his next move and heads out with an envelope. Soon, Soo-hyun finds out that her mother’s cell phone is with Seol hyun which makes her rush home only to see a mess. From there, she rushes to the hospital to see her mother unconscious.
Soo-hyun calls Yu-ri to look after her mother and heads out. Meanwhile, Kim Joon has arrived at the broadcast station and is ready to begin his battle with Su-ho. We then see Seol hyun inside a car while Soo-hyun is standing on the road in front of him.
