After a decade of regret over his lost first love, Shin Woo travels back in time for a second chance. But his past self becomes his biggest rival as both versions compete for the same girl's affection.
Episode List
S1 • E1
Episode #1.1
A math teacher went back 10 years to his high school life where he met all his friends and family including the girl he could never confess. As he met his younger self too, he took it as a challenge to fix the past.
S1 • E2
Episode #1.2
As the sports festival approaches, Shin Woo does everything in his power to force his younger self into Na Hee's life.
S1 • E3
Episode #1.3
The younger Shin Woo is prodded into confessing to Na Hee. But who does Na Hee truly like?
S1 • E4
Episode #1.4
The older Shin Woo and Ji Soo spend an awkward night locked in the school. Will Shin Woo give in to his desires?
S1 • E5
Episode #1.5
With all of his business wrapped up, the older Shin Woo decides it's time to head back to the future, but the only problem is how to do it.
S1 • E6
Episode #1.6
S1 • E7
Episode #1.7
With the younger Shin Woo in the present day, the race to win Ji Soo's heart intensifies.
S1 • E8
Episode #1.8
Ji Soo drunkenly mistakes Shin Woo for her teacher. Will he tell her the truth?
S1 • E9
Episode #1.9
After learning the truth about Ji Soo's odd behavior, Shin Woo turns over a new leaf.
S1 • E10
Episode #1.10
Will Shin Woo and Ji Soo find love in the series finale?
