Season
- Season 1 2017-07-19
Episode
- Episode 1: The Return
- Episode 2: The Accident
- Episode 3: How Is He Alive?
- Episode 4: Endless Confusion
- Episode 5: Figuring Out the Present
- Episode 6: Putting the Pieces Back Together
- Episode 7: In His Place
- Episode 8: The Meaning of Family
- Episode 9: You Are Not My Brother
- Episode 10: Living Your Dream
- Episode 11: Who Killed Hae Sung?
- Episode 12: The Fireworks
- Episode 13: Taking a Hint
- Episode 14: The Meaning of Family
- Episode 15: Hae Sung's Chest Pain Continues
- Episode 16: The New Job
- Episode 17: The Guilt
- Episode 18: The Culprit in the Room
- Episode 19: Why Did You Kill Me?
- Episode 20: You Don't Have Evidence
- Episode 21: A Big Shock
- Episode 22: Disappearance
- Episode 23: Cha Pasta Food Truck
- Episode 24: Report on the Murder Case
- Episode 25: A New Witness
- Episode 26: It's More Complicated
- Episode 27: The Mysterious Ties
- Episode 28: The Truth
- Episode 29: The Business Trip
- Episode 30: Don't Marry Her
- Episode 31: Let's Break Up
- Episode 32: The Truth
- Episode 33: The New Hopes
- Episode 34: Is Tae Hoon the Real Culprit?
- Episode 35: Coping with the Reality
- Episode 36: Narrowing Down the Suspect
- Episode 37: There's No Match for Her
- Episode 38: Catching the Real Culprit
- Episode 39: Clearing Hae Sung's Name
- Episode 40: Life Without You
Reunited Worlds
Although born in the same year, two childhood friends end up being 13 years apart because they have aged surprisingly at different places (worlds) for some strange reason. Now Eom Hyeon Soo is a 31-year-old woman but Sung Hae Sung is still a 18-year-old boy. Cha Won Yooung is a chef also interested in Eom Hyeon Soo.
