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S1 • E1
23-year-old Lee Ji Hoon secretly trains to become an idol instead of studying for a job, but starts to wonder if he has what it takes to become famous.
S1 • E2
Woo Seung makes an upsetting discovery by being in the wrong place at the wrong time, and then meets Ji Hoon under awkward circumstances.
S1 • E3
Hyun Jae immediately finds his way into a hospital, and then gets a gigantic surprise.
S1 • E4
As Hyun Jae starts to come to terms with his new reality, his presence throws Jo Hoon and Woo Seung's lives out of whack.
S1 • E5
Unsure of what to do, Hyun Jae pretends to have amnesia, and looks for a place to stay.
S1 • E6
On the day of their respective exams, Woo Seung and Ji Hoon stress out about doing their best.
S1 • E7
The aftermath of examination day for all three of the rooftop tenants hits home.
S1 • E8
Woo Seung agrees to help take Hyun Jae to the place his 1994 self was last spotted.
S1 • E9
Kwang Jae is horrified to learn that Hyun Jae has returned.
S1 • E10
Eager to venture outside of his rooftop hideaway, Hyun Jae goes to a mall where he enters a singing competition.
S1 • E11
Hyun Jae discovers a link to his past, as Kwang Jae tries to keep him in the dark.
S1 • E12
Bo Hee decides, on the anniversary of Hyun Jae's disappearance, that it is time for her to move on.
S1 • E13
Hyun Jae makes a crash-landing right back into Bo Hee's life.
S1 • E14
Woo Seung tries to get a job at Star Punch, but gets confused for someone else. Ji Hoon begins to question his path.
S1 • E15
Hyun Jae gets a new part-time job, while trying to figure out where his stash of money from 1993 is located now.
S1 • E16
Bo Hee takes an embarrassing role in a commercial, only to find out she's playing second-fiddle to an old rival.
S1 • E17
Ji Hoon confesses his feelings to Woo Seung. Hyun Jae discovers something surprising in his stash.
S1 • E18
Bo Hee makes a surprising decision, and Ji Hoon's part-time job leads to an unsuspected opportunity.
S1 • E19
Hyun Jae must come through in a clutch situation that makes him reconsider his feelings for a close friend.
S1 • E20
Hyun Jae decides to pay Young Jae a visit, while the triangle forming around Woo Seung deepens further.
S1 • E21
Young Jae continues to investigate Hyun Jae.
S1 • E22
Ji Hoon receives a career opportunity and asks Kwang Jae for help. Hyun Jae tries to convince himself he doesn't like Woo Seung.
S1 • E23
Kwang Jae starts to warm up to the idea of working again. In undoing Woo Seung's mistake, Hyun Jae earns recognition at work.
S1 • E24
Woo Seung suspects that Hyun Jae is mad at her when he pulls away. Kwang Jae looks for investors.
S1 • E25
MJ comes clean, and asks Hyun Jae for a favor.
S1 • E26
Woo Seung moves out of the rooftop apartment, and into a new set of complications. Drill's past is revealed.
S1 • E27
Woo Seung discovers Hyun Jae's secret, and doesn't know how to handle it. Kwang Jae's funding falls through.
S1 • E28
Hyun Jae finds something he has been looking for, and MJ makes alternate plans.
S1 • E29
Hyun Jae thinks he might have discovered what sent him into the future. Young Jae has a plan for taking care of MJ.
S1 • E30
Soon Tae's illness begins to accelerate, and Hyun Jae tries to tie up loose ends.
S1 • E31
Hyun Jae wakes up back where he started, but in a different time.
S1 • E32
Jay-B debut, and Woo Seung gets a new job supporting them. Hyun Jae makes a difficult decision.
Lee Gwang-jae
Choi Woo-seung
Lee Ji-hoon
Yoo Hyun-jae
Hong Bo-hee
Lee Soon-tae
Woo Seung's Mom
Ha Soo Young
CF Director
MJ