Seo Yeon gets into a fight because of her handsome older brother. Since this is not the first time, she is now sick of her brothers. Her boyfriend Jung Tae calls her to meet, and Seo Yeon is excited because he wants to meet her in the fancy restaurant which is a famous spot for proposing. However, Jung Tae’s face has changed, and Seo Yeon is flustered.

Seo Yeon breaks the flowerpot which the vice-principal adores. Min Hyuk witnesses her at the moment, and he tells the vice-principal who the culprit is. Kang Woo’s parents want him to join the family business, and it seems difficult for him to escape from them this time. Meanwhile, Seo Yeon goes to a bar to find Joo Hee, and she encounters Min Hyuk there.

Kang Woo tells Doctor Kim that Seo Yeon is the one who caused his trauma. Doctor Kim says that Kang Woo needs to overcome the fear regarding Seo Yeon so that he could get better. Chairwoman Han suggests Kang Woo that he should work for her company for a year. Meanwhile, Seo Yeon finally finds Joo Hee.

Seo Yeon brings Joo Hee to her house and tells Joo Hee to stay there. Kang Woo asks Seo Yeon to go out with him, and Seo Yeon thinks he is insane. Mi Kyung notices that Min Hyuk likes Seo Yeon. Meanwhile, Kang Woo becomes the chief director of Shinhwa High School.

Doctor Kim tells Kang Woo that he needs a photo of Seo Yeon to overcome his trauma. Therefore, Kang Woo takes a photo of Seo Yeon in secret. Meanwhile, Seo Yeon and Mi Kyung realize that Kang Woo is the grandson of Shinhwa Food’s chairwoman.

Shinhwa High School’s teachers and Kang Woo have a welcome party for Kang Woo. Kang Woo brings the teachers to Fantasia where Jung Tae dumped Seo Yeon. At Fantasia, Seo Yeon runs into Jung Tae, and Kang Woo witnesses Seo Yeon arguing with Jung Tae.

Doctor Kim says that Kang Woo is still in love with Seo Yeon, and Kang Woo strongly denies it. Seo Yeon waits for Kang Woo to get approval for the budget, but Kang Woo doesn’t come to school. Meanwhile, Kang Woo starts to work for Hyun Soo’s company as a fashion designer.

Won Jae is curious about Kang Hee. Kang Woo doesn’t come to school for four days, and Seo Yeon goes to his house to get the approval for the budget. Mi Kyung thinks Hyun Soo is a janitor at HS Entertainment. Meanwhile, Kang Woo feels embarrassed to have Seo Yeon in his house late at night.

Kang Woo feels humiliated after the unexpected situation. Seo Yeon finally gets Kang Woo’s approval for the budget, and she wants to thank Kang Woo. Mi Kyung and Seo Yeon go to a hotel for Mi Kyung’s blind date, and Seo Yeon gets to see Kang Woo’s blind date scene there.

Kang Woo is curious about Seo Yeon when he’s not with her, but he doesn’t want to admit it. Ho Dol is Seo Jun’s private tutor, and he runs into Won Seok at his house. Kang Woo decides to confess his feelings for Seo Yeon, but Seo Yeon and Kang Woo misunderstand each other’s intentions.

Kang Woo drives Seo Yeon home and gets to encounter Won Seok and Won Jae. Won Seok is suspicious about Kang Woo and Seo Yeon's relationship, and he wants to meet Kang Woo. Won Seok finds out that Kang Woo isn’t gay, and Seo Yeon gets mad about it. Seo Yeon is deeply disappointed with Kang Woo thinking that he asked her out for a joke again.

Kang Woo decides to bully Seo Yeon because he can't admit the fact that Seo Yeon pitied him. Min Hyuk tells Kang Woo not to bully Seo Yeon, but Kang Woo won’t listen to him. Jang Mi gets beaten by her mother, and Kang Hee saves her at that moment. Meanwhile, Seo Yeon gets drunk and tells Kang Woo that he hasn’t changed a bit.

Min Hyuk wants to tell Kang Woo that he likes Seo Yeon, but Kang Woo doesn’t want to hear about it. Min Hyuk asks Seo Yeon to be his partner for the meeting with his friends. At the meeting, Min Hyuk tells his friends that he had a crush on Seo Yeon at first sight. Meanwhile, Kang Woo gets jealous of Min Hyuk.

Seo Yeon goes to Kang Woo’s house, and Kang Woo cooks for her. Seo Yeon gets to see Kang Woo’s designs, but Kang Woo doesn’t want to talk about it. Won Jae asks Kang Hee for help, but she thinks Won Jae is putting on a show. Meanwhile, Kang Woo gets to know what happened to Seo Yeon’s parents.

Kang Hee wants to compensate Won Jae for her misunderstanding. Mi Kyung tells Seo Yeon that Kang Woo’s feeling for Seo Yeon is sincere, and Seo Yeon apologizes to Kang Woo. Seo Yeon still rejects Kang Woo because of his good-looking appearance. Meanwhile, Seo Jun keeps thinking about Joo Hee.

Chairwoman Han tells Min Hyuk to think about a position that he wants. Seo Yeon already knows that Min Hyuk is the grandson of Shinhwa Food. Jang Mi gets to live with Seo Yeon from now on. Min Hyuk’s father still wants Min Hyuk to be a doctor again. Meanwhile, Kang Woo tags along to Seo Yeon’s trip for the track and field match.

Mi Kyung gets to know that Hyun Soo is the president of HS Entertainment. Kang Woo takes care of Seo Yeon so that she could sleep well. There’s an emergency situation with Hi-Seven’s concert, so Mi Kyung and Kang Woo help Hyun Soo. Meanwhile, Kang Hee asks Won Jae why he came up with that act.

Min Hyuk decides to work for the company, and Mi Ja wonders what if Kang Woo gets on Chairwoman Han’s bad side. Seo Yeon can’t remember anything about the day of her mom and dad’s accident. Hyun Soo wants to express his gratitude to Mi Kyung by buying her expensive bags, and Mi Kyung gets angry at him.

Seo Yeon feels nothing after Kang Woo kissed her, and she thinks something is wrong with her. Kang Woo gets kicked out of Shinhwa High School, and Min Hyuk becomes the chief director. Seo Yeon tells Kang Woo this is a great opportunity to realize his dream. Meanwhile, Seo Yeon gets to know that Seo Jun still has a symptom.

Seo Yeon realizes that she likes Kang Woo while talking to Min Hyuk, and she confesses her feelings for Kang Woo. Mi Ja gets to see the pictures of Seo Yeon that Kang Woo drew. Actually, Seo Yeon can’t cry ever since her parents’ accident happened. Mi Ja asks Min Hyuk who Seo Yeon is, and he tells Mi Ja that Kang Woo likes Seo Yeon.

Seo Yeon thinks that her parents had an accident because of her, and she starts to avoid Kang Woo. Won Seok and Won Jae tell Seo Yeon that it wasn't her fault, but Seo Yeon still blames herself. Kang Woo keeps texting and calling Seo Yeon, but Seo Yeon won’t answer him.

Jang Mi overhears Seo Yeon’s conversation with Won Jae and Won Seok, and she decides to protect Seo Yeon. Kang Hee tells Kang Woo that his reckless behaviors could hurt Seo Yeon. Mi Ja tells Seo Yeon to break up with Kang Woo. Min Hyuk warns Kang Woo that he won’t miss any chance if Kang Woo makes a mistake.

Mi Ja pretends to like Seo Yeon in front of Kang Woo, and Kang Woo asks Mi Ja if it’s okay for him to date Seo Yeon. Seo Yeon tells Mi Ja that she will break up with Kang Woo, but Mi Ja tells Seo Yeon that she should keep seeing him. Meanwhile, Jang Mi visits Kang Hee’s office and tells her that she should stop Kang Woo from dating Seo Yeon.

Seo Yeon tells Jang Mi to leave her house. Won Jae keeps avoiding Kang Hee’s calls, and Kang Hee goes to his house. Min Hyuk gets to know that Seo Yeon lost her parents when she was young. Hyun Soo visits Shinhwa High School to see Mi Kyung. Meanwhile, Seo Yeon tells Kang Woo that she doesn’t love him.

Kang Woo tells Seo Yeon that he is the one who should cry. Kang Woo doesn’t want to admit that Seo Yeon doesn’t love him anymore, and he wants to make her love him again. Hyun Soo transfers Mi Kyung’s mother to another hospital. Meanwhile, Woo Bu tells Kang Hee to do a background check on Seo Yeon.