李妍书遭遇事故后双目失明，从那时开始，她就一直在等待角膜捐赠者。希望再一次落空后，她感到万念俱灰。

金丹因为拯救了一个本该逝去的生命而遭到严厉的惩罚。妍书重见光明，但却失去了一位亲人。

现在研书又可以跳舞了，梦想舞蹈团的新任艺术导演池康宇请她回到公司，她拒绝了他的请求，但他的态度非常坚决。

舞蹈团开始排练，丹帮助研书重新站立起来。她开始感到两人之间的火花。

研书给自己一个星期的时间训练，努力使舞蹈水平恢复到从前，但有一个基本动作怎么都练不好。琴妮娜前来拜访。

看到研书在海边的惊艳舞蹈后，康宇邀请她成为公司的首席芭蕾舞者。他们计划在慈善晚会上正式宣布这件事。

研书向赞助商提出大胆的建议以挽回损失，接下来，她需要应对整个公司的罢工事件。

丹辞去了他的职务，但是决定在接替者上任后再离开。研书尝试融入公司的群体，但是事情进展得并不顺利。

康宇质问研书对《吉赛尔》的诠释，但让他感到沮丧的何止是她在艺术方面的选择。丹记起了更多过去的事情。

丹和研书的感情日益升温，康宇也越发嫉妒两人的关系。郑有美得知研书的失明并非意外。

由于担心研书的安全，丹阻止她参加排练。崔英子发现了女儿的黑暗秘密。

为了和研书永远在一起，丹寻找变成人类的方法。妮娜在更衣柜发现一张奇怪的纸条。

康宇警告研书等待她的将是危险和心碎。英子和老公为了保护女儿而替她受过。

丹和研书承诺要一生一世在一起，希望这样可以改变他们不幸的命运。妮娜得到一个可以毁掉研书事业的机会。

丹在人间的时间只剩下三天了，他冒着生命危险阻止琴璐娜造成更大的伤害。与此同时，研书决定牺牲自己。

研书在急诊室命悬一线时，丹的最后期限到了。妮娜出演吉赛尔，进行了人生中的最后一次演出。

Yeon Seo has a dream about her childhood friend named Seong Woo, and she goes to the island where she met him for the first time. She asks the villagers if they remember the boy, and she gets to know that the boy died a long time ago. Meanwhile, Yeon Seo and Dan get to meet each other on the island.

Dan promises Yeon Seo that he will come back to her soon. Kang Woo tells Yeon Seo that she can lean on him, but Yeon Seo tells Kang Woo not to cross the line again. Meanwhile, Yeong Ja and Ru Na are trying to win over the dancers to their side. Dan is suspicious of Kang Woo and he trespasses on Kang Woo’s house.

Hu gets to know that Kang Woo is the angel who loved a human. Yeon Seo asks Dan what is the story that he is hiding from her. Kang Woo gets to hear that Ru Na and Yeong Ja bought votes from the corps. Meanwhile, Yeon Seo keeps practicing her dance with Dan the day before her audition.

After what happened to Yeon Seo at the rooftop of the ballet theatre, she can’t remember what happened to her that day. Kang Woo is suspicious of Yeong Ja and Ru Na for the kidnapping, but they deny it. Meanwhile, Dan worries about Yeon Seo, so he tells Yu Mi to strengthen the security of the Ivy Mansion.

Yeong Ja gets to know that Ru Na schemed to kill Yeon Seo. Ni Na tells Kang Woo that she will be Yeon Seo’s understudy. Yeon Seo thinks Dan is hiding something from her, so she sneaks into his room. Meanwhile, Dan gets to know that Kang Woo was the angel who fell in love with a human.

Yeon Seo remembers everything, including the fact that she was kidnapped. Yeon Seo asks Dan if he really is an angel, and he admits to it. Meanwhile, Yeong Ja tells Ru Na that she shouldn’t plot anything without telling her first. Yu Mi and Yeon Seo notice that Gwang Il’s phone has been bugged.

Dan asks Kang Woo how he could become a human, and Kang Woo tells Dan that Yeon Seo needs to die in order for him to become a human. Yeon Seo receives Gwang Il’s statement that confesses his wrongdoings by the instigation of Yeong Ja. Meanwhile, Kang Woo tells Yeon Seo that Dan will dissipate like dust because of her love.

Yeon Seo holds an emergency board meeting and tells the supporters that Yeong Ja, Ru Na, and Ki Chun will leave Fantasia. Ru Na begs for Yeon Seo’s mercy, but Yeon Seo tells her that she has no intention of forgiving them. Meanwhile, Dan wants to hear the answer from the deity, but the deity doesn’t respond.

Yeon Seo and Dan go on a picnic to the park where they first met. Yeon Seo wants to marry Dan because she thinks it is the only way for them to be together. Meanwhile, Dan falls down and gets hurt in the park, but his wound doesn’t heal itself as usual. They think this is a symptom of becoming a human and they wait for a rainy day to check if it’s real.

Dan decides to disobey the deity’s will, and he proposes to Yeon Seo. Elena suggests Ni Na that she should hurt Yeon Seo in order to be Giselle. Hu warns Dan and Yeon Seo for the last time, but they won’t listen to him. Meanwhile, Dan goes to see Ru Na and gives her a warning not to hurt Yeon Seo once again.

Kang Woo tells Yeon Seo that it will be meaningless to Dan if she doesn’t exist in this world, and she notices that she should die in order to save Dan. Ni Na announces to her family that she will live by herself from now on, and Ru Na gets furious. Meanwhile, Dan and Yeon Seo’s wedding day comes, and they make a vow of their eternal love.

Ki Joon Soo tries to kill Dan, and Hu saves Dan at that time. Yeon Seo tells Kang Woo that she won’t perform on stage because there is no time left for Dan and Yeon Seo. Dan gets to hear that conversation and tells her that she needs to dance for his sake. Meanwhile, Dan and Yeon Seo get to find Hu’s report at the church and they realize Hu’s innermost feelings.

Ru Na tries to hang herself in prison, so she is taken to the hospital. On the day of Fantasia’s show, Yeon Seo decides to show the most beautiful Giselle in the world to impress the deity. Meanwhile, Ru Na escapes from the hospital and sneaks into the theater. Ni Na tries to stop her, but Ru Na doesn’t care about her.

Yeon Seo loses consciousness after her performance. Yeong Ja and Ki Chun go to the police station to see Ru Na, but Ru Na only concerns about whether Ni Na plays Giselle or not even in this situation. Dan wants to be by Yeon Seo's side, but there is no more time left for Dan. Meanwhile, Yeong Ja and Ki Chun come to Yeon Seo’s hospital to apologize to her.

Yeon Seo comes back to home with Dan, and they spend time together happily. However, Yeon Seo realizes that it is her dream. Dan tells Yeon Seo to live happily without him and bids farewell to her. After her dream, Yeon Seo finally wakes up from a coma. After Dan’s disappearance, Yeon Seo tries to live bravely, but she keeps seeing a hallucination of Dan.