A Day Before Us - Zero
1 - A Sudden Cohabitation
Air Date: October 8, 2018
2 - Moving Classes
Air Date: October 12, 2018
3 - The High Jump
Air Date: October 19, 2018
4 - Amusement Park
Air Date: October 26, 2018
5 - An Awkward Time for Yeo Reum
Air Date: November 2, 2018
6 - Yeo Reum's Tears
Air Date: November 9, 2018
7 - Cought Red-Handed
Air Date: November 16, 2018
8 - Packed Lunch
Air Date: November 23, 2018
9 - The Way Back Home That Day
Air Date: November 30, 2018
10 - Hospital Visit
Air Date: December 7, 2018
11 - Yeo Reum's Kindness
Air Date: December 14, 2018
12 - Giving Up and Accepting Reality
Air Date: December 21, 2018
13 - Hitting the Books!
Air Date: December 28, 2018
14 - The Alternative Dream
Air Date: January 4, 2019
15 - It's Never Too Late
Air Date: January 11, 2019
16 - Higher, Further
Air Date: January 18, 2019
17 - Finding Out One's Feelings
Air Date: January 25, 2019
18 - Our Eighteen
Air Date: February 1, 2019
19 - EPILOGUE. Again, High Jump
3 years later, this mini-series brings the viewer back to ep. 4 'The High Jump' showing a bit different perspective of our beloved characters.