Kreator : Park Ga-yeon
A shy math teacher time-travels back to high school to win his lost love, competing with his younger self for her heart.
S01E01
8 Jan 18
S01E02
9 Jan 18
S01E03
15 Jan 18
S01E04
16 Jan 18
S01E05
22 Jan 18
S01E06
23 Jan 18
S01E07
29 Jan 18
S01E08
30 Jan 18
S01E09
5 Feb 18
S01E10
6 Feb 18
