About this season
Kang Shin-Woo is a math teacher with a good looking appearance. He has not forgotten his first love Han Ji-Soo for the past 10 years. By an accident, he travels to the past when he was a high school student. There, he meets his younger self. Kang Shin-Woo struggles to make the younger Kang Shin-Woo's love come true.
Episodes (10)
E1
1. Episode 1
10.0Aired 8 January 2018 • 55 min
E2
2. Episode 2
10.0Aired 9 January 2018 • 54 min
E3
3. Episode 3
10.0Aired 15 January 2018 • 46 min
E4
4. Episode 4
10.0Aired 16 January 2018 • 46 min
E5
5. Episode 5
10.0Aired 22 January 2018 • 47 min
E6
6. Episode 6
10.0Aired 23 January 2018 • 48 min
E7
7. Episode 7
9.0Aired 29 January 2018 • 48 min
E8
8. Episode 8
10.0Aired 30 January 2018 • 46 min
E9
9. Episode 9
Aired 5 February 2018 • 46 min
E10
10. Episode 10
Aired 6 February 2018 • 47 min