"Cheating is a choice not a mistake." 

Park Jihae was the happiest girl because she already have a caring family, supportive friends and a loving boyfriend. What else she could ask more? They've been three years now with her loving, caring and sweet boyfriend. 

But one typical day, she found out that her boyfriend has another girl. She felt useless, sad and worst. She didn't expect that her boyfriend can do that to her. She decided to break things between them because it's not worth it. She left Korea to move on, forget the past, and especially try to forget him. 

It's been two years since she left Korea but now she's going to go back to the place where she met him, she felt in love with him and she felt how to be cheated of the one she loves. 

Everythings change when she go back, she's been tough and know how to face challenges.