S01:É01 - S01:E01 - Episode 1
Ju-hyuk, struggling with his everyday life, coincidentally encounters his first love, Hye-won.
S01:É02 - S01:E02 - Episode 2
Ju-hyuk takes his weird dream lightly. But he soon realizes that the dream isn't a mere dream.
S01:É03 - S01:E03 - Episode 3
Ju-hyuk enjoys a changed life with Hye-won. Soon, his happiness shatters with another change.
S01:É04 - S01:E04 - Episode 4
Ju-hyuk observes Woo-jin. He is confused about her, who seems familiar but somewhat different.
S01:É05 - S01:E05 - Episode 5
Ju-hyuk visits Woo-jin's house. He is shocked to hear about her mother's Alzheimer's and worries.
S01:É06 - S01:E06 - Episode 6
Jong-hoo and Woo-jin go on training together, which makes Ju-hyuk restless in jealousy.
S01:É07 - S01:E07 - Episode 7
Jong-hoo is all over Woo-jin. And Ju-hyuk, Hye-won, Woo-jin, and Jong-hoo go on a trip together.
S01:É08 - S01:E08 - Episode 8
Ju-hyuk tries to turn back time to change everything as it was. And Woo-jin's mother disappears.
S01:É09 - S01:E09 - Episode 9
Hye-won gets upset at Ju-hyuk helping Woo-jin. A rumor about Woo-jin spreads on the internet.
S01:É10 - S01:E10 - Episode 10
Hye-won leaves home after a fight with Ju-hyuk. And Jong-hoo and Woo-jin's relationship reveals.
S01:É11 - S01:E11 - Episode 11
Woo-jin finally realizes her feelings for Ju-hyuk and decides to break up with Jong-hoo.
S01:É12 - S01:E12 - Episode 12
Woo-jin is confused by Ju-hyuk's sudden confession. And Ju-hyuk involves in a scandalous incident.
S01:É13 - S01:E13 - Episode 13
Woo-jin and Ju-hyuk go to the day in 2006 to change the past. Ju-hyuk hides to change their future.
S01:É14 - S01:E14 - Episode 14
Woo-jin finds Ju-hyuk in the past, but Ju-hyuk avoids her, ignoring his feelings for her.
S01:É15 - S01:E15 - Episode 15
Woo-jin and Ju-hyuk finally get together, but Woo-jin's first love appears in front of them.
S01:É16 - S01:E16 - Episode 16
Ju-hyuk and Woo-jin marry again, and Ju-hyuk bumps into Hye-won at the college reunion.