Seol Ah’s blind date turns out to be better than she expected. However, when she comes home, she figures out that her date is related to Jun Gyeom. Seol Ah blames Cheong Ah for ruining her chances of marrying a rich man. Meanwhile, Judge Hong invites Cheong Ah to her house and asks to know the truth about Jun Gyeom’s death. Finally, a year goes by and Jun Hwi receives a strange letter.

Cheong Ah shows up at Rim’s hospital room in the Mr. Lightning costume to prove her innocence to Jun Hwi. They go to the patrol division to let the police know what happened. After Cheong Ah’s name is finally cleared, Jun Hwi asks the Head of Patrol about the detective who handled Jun Gyeom’s death several years ago. Meanwhile, Seol Ah is in shock after hearing Jin U’s condition.

Cheong Ah and Jun Hwi return to the hospital together. Jun Hwi tells her to come by his office the next day to discuss the payment she owes for damaging the camera. Cheong Ah ends up telling Jun Hwi about Jin U’s car accident. Meanwhile, Chairwoman Hong is busy protecting Jin U’s assets from Seol Ah, who takes desperate measures to keep her place as Jin U’s wife.

Cheong Ah and Seol Ah run into each other in front of the ICU and they realize that they are both involved in the same car accident. Seol Ah tells Cheong Ah to keep their reunion a secret from their mom. Tae Rang sees Seol Ah waiting in front of the ICU and forces her to go eat with him. As they fall asleep in the hospital chapel, Jin U’s condition worsens.

Yeong Woong sulks over his wife’s supposed mistreatment of him and he sneaks out with Yeon Ah’s gold medal to replace with a fake. Jun Hwi submits a repayment contract regarding the camera that Cheong Ah damaged, but his boss is not happy about it. Jun Hwi calls Cheong Ah into the office to sign the contract. Meanwhile, Young Ae visits an OBGYN at the hospital where Jin U is being treated.

Cheong Ah runs into Chairwoman Hong in front of the elevators at Inter Market. Before Chairwoman Hong remembers who she is, Cheong Ah makes a run for it. Meanwhile, Young Ae discovers that she needs surgery. As she sits near the hospital, thinking about what the doctor told her, she sees Seol Ah for the first time in nine years. They have a brief, tearful reunion.

Seol Ah discovers Jin U’s generosity toward Hae Rang and her family and becomes even more enraged. However, Chairwoman Hong continues digging for evidence of Jin U’s affair to use as an excuse to get Seol Ah divorced from her son. Meanwhile, Young Ae discusses the accident with Cheong Ah and says that they must take Seol Ah’s side. Jun Hwi’s search for the girl from Jun Gyeom’s death continues.

Young Ae and Judge Hong meet in the lobby of the hospital. When Seol Ah shows up to meet her aunt-in-law, she’s surprised to see her mom there but pretends not to know her. Young Ae leaves the hospital in a hurry, but her legs give in from the shock of the encounter. Tae Rang sees her and helps her get home. Meanwhile, Cheong Ah confides in Jun Hwi regarding the accident.

Tae Rang brings home the food that Young Ae made for Seol Ah and delivers it the next day. Seol Ah thinks Tae Rang must have some other motive, clueless that the food is actually from her mom. Meanwhile, Chairwoman Hong continues to threaten Seol Ah with divorce, using the picture of Hae Rang and Jin U as proof of Jin U’s intentions. Finally, Judge Hong visits Cheong Ah at her studio apartment.

Cheong Ah and Jun Hwi meet at the accident site by chance. Cheong Ah tags along with Jun Hwi, whether he likes it or not. As they find evidence from the accident together, both Cheong Ah and Jun Hwi discover more about each other. Meanwhile, Seol Ah convinces Chairwoman Hong that they should be on the same side.

Tae Rang receives a phone call from Young Ae, asking to deliver another meal to Seol Ah. At the office, Chairwoman Hong bursts into Jun Hwi’s office and warns him to stay away from Cheong Ah. Meanwhile, Cheong Ah visits her mom, who gives her an envelope of money. While leaving her parents’ house, she runs into Mr. Cha, Chairwoman Hong’s secretary.

Seol Ah eats her mom’s food that Tae Rang delivers to her. When Chairwoman Hong sees Seol Ah eating, she suppresses her anger and begins her nice mother-in-law act, just as her lawyer suggested. Meanwhile, Yeong Woong comes home from the local welfare center empty-handed and tries to blame it on Young Ae, as usual. However, this time, Young Ae takes a stand.

Cheong Ah receives a phone call from Judge Hong, who asks Cheong Ah to join her for dinner. Cheong Ah hesitates, wondering whether she should meet Judge Hong or run and hide as Seol Ah told her to. Meanwhile, Jun Hwi gets called up to Chairwoman Hong’s office. He becomes worried that the chairwoman could have threatened Cheong Ah as well and goes to see her at the studio.

Hae Rang wakes up from her coma and Seol Ah finally finds out that Tae Rang and Hae Rang are siblings, not husband and wife. Seol Ah feels betrayed that she opened up to Tae Rang. Meanwhile, Inspector Mun decides to help Jun Hwi investigate the car accident. Finally, Rim and Jun Hwi meet outside Hae Rang’s hospital room.

Jun Hwi updates Rim about Inspector Mun’s involvement in the case and Rim tells Jun Hwi that Cheong Ah isn’t his girlfriend. Later, when they meet outside the hospital, Jun Hwi finds himself smiling when he sees Cheong Ah. Meanwhile, Seol Ah runs into Hae Rang waiting to see Jin U. The fight between the wife and mistress begins, as Chairwoman Hong intercepts a note from Tae Rang to Seol Ah.

Seol Ah comes home, and her family warmly welcomes. Seol Ah, Cheong Ah, and Yeon Ah have an honest talk for the first time in a long time. Meanwhile, Hwa Young thinks Seol Ah and Tae Rang are having an affair, and tells Hae Rang not to give up on Jin U and be his side.

While Seol Ah keeps her promise to Tae Rang that she won’t tell Hae Rang’s father about her affair, Chairwoman Hwa Young uses Hae Rang’s love for Jin U and asks her to make a false statement to the police. Cheong Ah tries to threaten Hwa Young with a recording to protect Rim.

Cheong Ah and Seol Ah threaten Chairwoman Hong with the voice recording. Cheong Ah deletes the recording, but Jun Hwi also pushes Chairwoman Hong to make a settlement with Rim. However, Chairwoman Hong presents Jun Hwi with a condition. Later, as Cheong Ah and Jun Hwi talk on the phone, Jun Hwi gets the feeling that Cheong Ah is the same person he met before.

Chairwoman Hong wants to throw Seol Ah out. But with the press starting to follow them for interviews regarding Jin U’s accident, she has to continue pretending to be a good mother-in-law. Meanwhile, Tae Rang tries to convince Hae Rang to do the right thing and leave Jin U, but she refuses to listen. Finally, Jun Hwi decides to ask Cheong Ah about the first guy she fell for.

Cheong Ah and Jun Hwi are glad to finally recognize each other from the train years ago, but Jun Hwi bids Cheong Ah farewell. However, when Jun Hwi goes to meet the high school tennis player he wants to scout, he realizes more about Cheong Ah and her family than he expected. Meanwhile, Young Ae is livid that Hae Rang is back in her daughter's life.

Tae Rang goes to see Chairwoman Hong and hands her a letter of resignation on behalf of his sister, but Hae Rang still wants to stay by Jin U’s side and eventually take Seol Ah’s place as his wife. Young Ae overhears Chairwoman Hong and Hae Rang’s conversation and lashes out at them both. Meanwhile, Cheong Ah’s exam results are finally out, but she is too nervous to check it herself.

A year passes by and Jin U finally wakes up from his coma. However, he and Seol Ah are already divorced. Seol Ah tries to live a new life, although she can’t help but visit Jin U every week. Meanwhile, Cheong Ah finishes her time at the police academy and gets her first assignment. When she reports for duty on her first day, she meets a friendly face.

Jin U is angry and confused about everything that happened during the past year. Meanwhile, Judge Hong invites Cheong Ah out to dinner to celebrate her first day of work. During their meal, Judge Hong gets a call from Jun Hwi saying that he is back. Finally, Yeon Ah decides that she wants to ask Jun Hwi whether the contract deal is still available.

Jin U is shocked to discover that he and Seol Ah are divorced and has a hard time accepting it. He finally realizes that Seol Ah knows about his relationship with Hae Rang. Meanwhile, Cheong Ah and Jun Hwi reunite and they both seem to have feelings for each other. However, Young Ae shows up to make things a bit awkward. Also, Jun Hwi remembers his mom asking him not to meet Cheong Ah.

In an attempt to regain Seol Ah’s favor, Jin U sends flowers and gifts to her house. However, Seol Ah refuses to let him sway her and sends everything back to him. Young Ae is furious that Jin U did such a thing without apologizing properly and goes to visit him in the hospital. Meanwhile, Jun Hwi signs a contract with Yeon Ah and uses the excuse to call Cheong Ah again.