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A great job and a great boyfriend; Yeon-doo has it all — until she finds Jun-ha cheating on her. Tae-kyeong rejects marriage and also his girlfriend.

Crushed to learn that she’s pregnant with Jun-ha's child, Yeon-doo seeks the help of the OB/GYN Tae-kyeong. Meanwhile, Geum-sil gives an ultimatum.

In-ok flees home from her conflicted son and mother-in-law. Se-jin tries to win Tae-kyeong over. Yeon-doo thinks her pregnancy might end her career.

The family learns about the pregnancy, but Bong-nim is still in the dark. Yeon-doo can't decide. Tae-kyeong makes peace, but In-ok wants a divorce.

Yeon-doo's evicted when she reveals her intent to give birth. Tae-kyeong's ready to tie the knot. With family on her tail, Yeon-doo asks for his help.

Tae-kyeong is convinced the wedding was a mistake. After Se-jin's lies, he tries to break things off. Yeon-doo runs into her mother at the Old School.

A shocked Bong-nim pressures Yeon-doo to get married, but neither the truth nor the wedding can be forced. Tae-kyeong runs into unexpected obstacles.

Tae-kyeong evades Bong-nim's surprise visit and offers a marriage contract to Yeon-doo. His wedding to Se-jin is approaching, and so is the truth.

Yeon-doo's presence at the wedding causes chaos. She and Tae-kyeong agree to be a couple for their own purposes. Se-jin finds out who ruined it all.

Se-jin disrupts Yeon-doo and Tae-kyeong's engagement, but the mothers are steadfast. To speed things up, the couple may need to make things official.

The newlyweds lay low at Geum-sil's. But between Su-jeong and the memorial, Yeon-doo is stretched too thin... and Tae-kyeong doesn't understand why.

Yeon-doo and Tae-kyeong run into Se-jin. Hyun-woo is conflicted over Ji-myeong's pregnancy. And a final goodbye leads Se-jin to unexpected places.

Despite suspicions, Se-jin prepares to leave. Yeon-doo argues with Geum-sil while eating for two. Tae-kyeong gets an invite. Dong-wook sees Yu-myeong.

Determined and armed with a plan, Se-jin returns to tear apart the fake couple. Yeon-doo is nostalgic for her lecturing days and makes a pit stop.

Se-jin finally gains leverage on Yeon-doo and Tae-kyeong with her lies. Su-jeong sparks Geum-sil's suspicions about Yeon-doo and her truth.

Geum-sil is nervous. Bong-nim has discovered her secret, one that the couple can't know. Yeon-doo worries about single motherhood at Bong-nim's house.

The couple braces themselves, but a power outage shakes things up at Geum-sil's. Hyun-woo swings by Ji-myeong's office but finds her with Sang-hoon.

Yeon-doo prepares for life on her own while Tae-kyeong baffles her with his glum attitude. Se-jin takes the opportunity to come between the couple.

Dividing the company has Geum-sil and Cheon-myeong on edge. Yeon-doo helps Tae-kyeong escape them but feels lonely in his absence and wary of Se-jin.

Tae-kyeong wants to break the contract. Unaware of his real feelings, Yeon-doo steels herself for their final farewell — until the unexpected happens.

Yeon-doo pushes Tae-kyeong away. A clearheaded Se-jin contacts Jun-ha. Ji-myeong and Hyun-woo's misunderstanding leads to a contract of their own.

Jun-ha's call is overdue. Tae-kyeong gives Se-jin the cold shoulder. Yeon-doo decides to move out, but Tae-kyeong wants their time together to last.

With 2 months left, Yeon-doo helps Tae-kyeong and his family reconcile. Se-jin is cornered after Chan-sik receives a letter. Jun-ha finally shows up.

Tae-kyeong wants to keep sharing rooms like a real couple. Yeon-doo helps Geum-sil run for class president. Chan-sik is skeptical of Jun-ha's request.

Jun-ha invites Tae-kyeong to golf after Yeon-doo's chilly reception. Hyun-woo and Mi-yeon are seen together. Se-jin finds who stabbed her in the back.

Yeon-doo fully commits to Geum-sil's campaign. Tae-kyeong forces her to take a break. But the break's over for Se-jin, and Jun-ha drops a bombshell.

The big move draws near after the realtor's call. Yeon-doo feels for Tae-kyeong. In-ok is shocked at Sang-hoon's audacity. Chan-sik must make a deal.

A chance meeting at the art museum tests Se-jin and Jun-ha's acting prowess. Tae-kyeong has complex feelings while watching Yeon-doo talk to her baby.

Yeon-doo helps Tae-kyeong talk to Geum-sil. A confused Chan-sik is swept up in Se-jin and Jun-ha's scheme. Ji-myeong and Hyun-woo explain themselves.

Chan-sik's enraged over the truth, and Tae-kyeong intends to move out. Ji-myeong has something to tell Hyun-woo. Jun-ha finally learns the real story.

Tae-kyeong and Jun-ha rush an unconscious Yeon-doo to the hospital. Tae-kyeong leaves a gift for her. Jun-ha finally learns how the two first met.

Yeon-doo and "Real" get a warm welcome home from the family, but she feels conflicted. When Se-jin's plan tanks, she arranges Jun-ha to meet someone.

Yeon-doo finally tells In-ok everything. Feeling betrayed and angry, In-ok casts Yeon-doo out to Bong-nim's house despite the couple's apologies.

Yeon-doo is gone. Tae-kyeong searches for her, but 5 months go by with no word. At last, Yeon-doo has the baby "Real" and decides to make a call.

Yeon-doo and Tae-kyeong have many questions for each other when they meet by chance. Su-jeong reports back to Geum-sil, who pays Tae-kyeong a visit.

Geum-sil finds Yeon-doo at Tae-kyeong's but keeps this fact to herself. Se-jin suspects Yeon-doo's return, but Yeon-doo vows to never return to Seoul.

She won't run anymore. Yeon-doo finally accepts her feelings for Tae-kyeong. Jun-ha takes advantage of Bong-nim's shock over the news of the couple.

In-ok rushes to her son's house to confirm the rumors, upon which she gives an ultimatum. At Geum-sil's home, she gives the couple the cold shoulder.

In-ok will accept Yeon-doo if she gives up Ha-neul, but she won't. Tae-kyeong asks for Bong-nim's help. Geum-sil takes off after clashing with In-ok.

The family finally shares their grievances. After, In-ok needs time alone, but Yeon-doo manages to find her. Dong-wook runs into Song-i at the café.

In-ok has a change of heart. The families gather to celebrate as Ha-neul makes a joyous debut. Tae-kyeong wants to make the marriage official.

Jun-ha files a child custody suit. His cruel antics enrages Chan-sik, and a family meeting is arranged. Bong-nim reveals Se-jin's father to Yeon-doo.

Chan-sik has Jun-ha in a corner. Tae-kyeong requests a DNA test between Geum-sil and his alleged aunt Echa. Se-jin quickly reports back to Jun-ha.

Geum-sil meets Jun-ha at the memorial park. She can't help but care for him. The family warns Yeon-doo and Tae-kyeong about this change of heart.

Neither Yeon-doo nor family can't stop Tae-kyeong from canceling the adoption. Amid the frenzy, Geum-sil bonds with Jun-ha as she prepares a memorial.

Jun-ha hides his DNA test results from all. Tae-kyeong decides to leave the country to protect his loved ones. Meanwhile, Echa pays a visit to Jun-ha.

In light of Tae-kyeong's past, Echa reveals that Jun-ha was adopted. Crushed, Geum-sil shuts out Jun-ha. Se-jin feels lost after her father collapses.

Yeon-doo and Tae-kyeong plan a family gathering, but Jun-ha gate-crashes. He wants to say goodbye to Ha-neul before leaving, but the couple is unsure.

Jun-ha disappears with Ha-neul. Yeon-doo, Tae-kyeong and their families embark on a desperate search. Se-jin unknowingly bids farewell to her father.

Yeon-doo decides to move back. Tae-kyeong's family welcomes her and Ha-neul, but there's one thing left to do. Yu-myeong gives Dong-wook an ultimatum.