Into the World Again

Hae Sung and Jung Won are ordinary high school seniors who are getting themselves ready for life after graduation. One day, Hae Sung wakes up to find everything surrounding him different. He was dead for 12 years.

Hae Sung is confused by what is going on and bumps into Ho Bang. Hae Sung learns how he was killed.

Jung Won is confused and pressured by Min Joon's confession. Hae Sung finds out how his family and friends have been living through Ho Bang, who also tells him that he and the rest of their friends lost touch with Jung Won.

Jung Won takes care of Hae Sung who was injured and lost consciousness. Jung Won thinks she's insane for thinking that Hae Sung has comeback from death. Hae Sung finds out how Jung Won's life has been difficult without him and is heart-broken.

Hae Sung and Jung Won talk about their past. Hae Chul avoids Hae Sung, but Ho Bang tells him the truth.

Hae Sung reunites with his old friends. Ho Bang tells Hae Sung that Tae Hoon's dad had hit him with his car.

Hae Sung sees Min Joon hugging Jung Won and turns away. Young In faints, and Hae Sung looks in on her.

Min Joon gets his wrist injured and Jung Won offers to help him. Hae Sung goes over to Min Joon's place and offers to help instead of Jung Won. Meanwhile, Gong Joo disappears from her kindergarten and Hae Chan looks all over the city to find her.

Hae Sung collapses on the street due to chest pain. Soo Ji kisses Hae Sung on the cheek when they first meet.

Hae Sung asks Young Jun to perform surgery on Mr. Ahn's son. Jung Won does not pass the test.

Ho Bang tells Hae Sung what he heard at the funeral of the driver who hit Hae Sung with his car.

Hae Chul fights with customers at the restaurant. Hae Sung feels chest pain in the department store.

Jung Won gets held up at a hospital because of Min Joon's accident. Fortunately, she makes it to the fireworks festival and meets up with Hae Sung there. Hae Sung feels another pain in the chest and looks for people who might be related to his death.

Jung Won and Hae Sung drink at Jung Won's place. Tae Hoon takes his parents to Jung Won's restaurant.

Hae Sung decides to bring everything back to its place before the time he has to leave comes.

Hae Sung tries to get a job at the restaurant so that he can stay near the culprit that killed him.

Jung Won still remembers how hard it was after Hae Sung died. Min Joon tells Hae Sung that he's into Jung Won.

Hae Sung and Jung Won go on a trip together. The truth behind Hae Sung's chest pain is revealed.

Hae Sung faces Gwon Pyo, the one that killed him 12 years ago. Soo Ji asks Young In for help.

Gong Ju's mother visits Hae Chul, but Hae Chul tells her to leave them alone. Min Joon's uncle turns out to be the driver who is known as the culprit, and Min Joon has the evidence to prove that his uncle did not kill Hae Sung.

Hae Sung is in big shock after hearing who the real culprit behind the murder was. Min Joon tries to bring the truth into light with his aunt’s testimony, but he’s put in more danger by Gwon Pyo’s scheme.

Hae Sung passes out in the middle of nowhere so no one can find him. Hae Sung is out of touch for a while and Jung Won gets really worried about him. He tries to make up for the time he was away from Jung Won.

Hae Sung and Min Joon start of their new business, the “Cha Pasta Food Truck”. Their food truck becomes a hot issue on social network media by a chance. Meanwhile, Jung Won submits her work to a character contest and waits for the results.

Hae Sung tries to cover up the truth behind the incident which took place twelve years ago. He tries with all his might for Young Jun. However, Ho Bang receives a call reporting the murder.

Hae Sung finds out Min Joon is the son of Chairman Cha Gwon Pyo and that he's half brother of Tae Hoon. Meanwhile, an anonymous calls Ho Bang to report on what he saw on the day of Hae Sung's death.

Ms. Do lets Jung Won work at her art gallery. Kyung Eun runs into Jung Won at the gallery and recognizes her.

Ho Bang asks Mi Na where Kyung Eun is and if she's met her. Jung Won finds out where Kyung Eun stays.

Mi Na tells Kyung Eun to go off the grid and keep a low profile. Soo Ji sees Young Jun and Young In together.

Ho Bang thinks Dong Seok is either the culprit or the witness of the case. Hae Sung and Jung Won meet Do Gwon.

Gong Joo's mother says she will take Gong Joo with her when she goes back to the US. Jason visits Hae Chul.

Hae Sung realizes that Tae Hoon could be the culprit behind the murder after talking with Young Jun. Tae Hoon's mother goes and sees Young In to tell her that she doesn't deserve Tae Hoon. Young In considers breaking up with him.

Jung Won runs into Dong Seok and asks him about the night Kyung Chul died. Tae Hoon tells Hae Sung the truth.

Hae Sung witnesses Dong Seok wandering around Jung Won. Tae Hoon decides to turn himself in.

Tae Hoon tells Hae Sung what really happened on the night Hae Sung died. Jung Won finds a video Hae Sung left.

While trying to get Dong Seok, Jung Won remembers that she gave her name card to Gong Joo's mom.

Dong Seok tells Yoo Min that he can't take Gong Joo to the US. The fingerprint analysis results are out.

Hae Sung decides to spend the rest of his time with Jung Won. Jason disappears with Gong Joo.

Hae Sung and Hae Chul finally open a restaurant. Jung Won and Min Joon witness Hae Sung's body disappear.

Hae Sung and Ho Bang chase after Dong Seok, who kidnaps Gong Joo, but they get into an accident.

Hae Sung and his siblings go on a trip. Before Hae Sung leaves, Jung Won says what she has had on her mind.