Young Joon proposed to Mi So at her house while they were getting ready to eat noodles. Mi So’s father heard everything and objected the marriage. He wants Young Joon to propose to Mi So in a romantic way. So for day Young Joon keep thinking of a way to propose. He even booked a vacation to Las Vegas, but Mi So rejected the trip without knowing Young Joon’s intention. After thinking for a while, Young Joon received an advice from Sung Yeon about how to propose. 
Episode 15
Young Joon drove Mi So home and remained for dinner. He proposed to Mi So, but her father objected. Mi So’s father takes Young Joon out for some drinks and told Young Joon that he can’t give his daughter to an someone who isn’t romantic and cool. So Young Joon must find a romantic way to propose to Mi So for Mi So’s father to approve the marriage.
Mi So was so worried that she came outside to wait for her father and Young Joon. She sees them coming while holding arms. Both of them are so drunk that they can’t walk so they hold each other. She nags them for drinking too much and both are scared of her.
Young Joon:”Mi So scares me often. Mi So, I love you.”
The next morning, Young Joon’s stomach isn’t so well. Luckily Mi So brought his some hangover soup. When he felt better, Young Joon went to Yoo Shik’s office. He needs advice about how to romantically propose to Mi So. Finally Young Joon got an idea. He planned a trip to Las Vegas where he plans to propose. But Mi So doesn’t want to go. Since people found out about their relationship there are a lot of gossips so they should work more to prove the gossipers wrong.
While Young Joon searches for new ides to propose, Mi So went out with Ji Ah and Se Ra. It’s getting late and Mi So didn’t say anything. Worried that something might have happened, Young Joon calls her. Mi So was at the restroom so the other two drunk women answered. They told Young Joon to come pick up Mi So who is drunk.
When he arrived, all three women were drunk. He sits beside Mi So while Se Ra and Ji Ah threat him really friendly. They call him by his name, not by his title. He is there as Mi So’s boyfriend, not their superior. Then he took Mi So home.
The next day, Ji Ah and Se Ra were worried about their future in the company. They went to Young Joon and apologized. They’ve also returned his wallet and his watch.
Ji Ah goes to get some water and meet Gwi Nam. The night before she went to his apartment and recorded a video with Gwi Nam’s phone in which she was confessing and asking Gwi Nam to date her. Seeing Ji Ah so embarrassed, Gwi Nam pretends that Ji Ah was joking. So Ji Ah made it clear that she wasn’t. This time, she’s not drunk so she confesses again. Unfortunately Gwi Nam rejected her confession. Gwi Nam also likes her, but he has nothing to offer her so it’s better if they won’t start dating.
Ji Ah:”I think I like you.”
Young Joon’s mother found out about her son’s relationship with Mi So. She called him over and Young Joon told her about wanting to marry Mi So. She always liked Mi So, but now she is worried. She has the impression that Sung Yeon also likes Mi So and is afraid Young Joon and Sung Yeon’s relationship will deteriorate again. But Sung Yeon heard her talking with Young Joon. He was drawn towards Mi So because he thought he and Mi So were kidnapped together. Now when he knows the truth, Sung Yeon has nothing against Young Joon and Mi So’s relationship.
Sung Yeon:”Mi So has to be his.”
Lately Sung Yeon has done psychotherapy so he feels a lot better and a lot happier now. He advises Young Joon how to propose. Young Joon shouldn’t copy what other did or show off. Young Joon should focus on what Mi So likes and what he wants to give Mi So.
After thinking for a while at Sung Yeon’s words, Young Joon got an idea. He calls Mi So to come over. When she arrived, the alley to Young Joon’s house was lightened by candles. On the way she found a table with caramels. She keeps going and finds another table. On it, Mi So found a notebook and reads what Young Joon wrote. Then she follows the instructions on the last page. She finds Young Joon and the moment she entered, Young Joon started playing the piano…and voice. He sings for her. Young Joon gets on one knee and proposes.
Young Joon:”Will you marry me? I love you.”
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