When the lead couple has their happy ending, but what about the second lead ending who has to sacrifice their love just to see their loved one happy? Before it was a journey about them fighting for their loved ones but now it's about their fighting for love. Choi Seungcheol, to get to see his lover happy with her lover creates both happiness and pain for him. That is his wish so that she doesn't have to face the hardship that she have to face before. Indeed he was in love with her, the girl who was warm as the sun and pretty as the moon, a girl whom she respect as how she was, sadly he had to let her go. Im Miyeon, am a rich but very kind person. She who always by Yeseo's side helping her through her hardship. They treated each other like a sister none could ruin their bond. But throughout the journey, she develops feelings for Choi Seungcheol, her childhood best friend. Even before both of them met Yeseo, she already loved him from afar. And till now she loves him knowing he loves someone else. And how destiny on Miyeon's side, her crush finally hers. But is that their happy ending? 'None can feel love once the other heart is already bound to another's.'