I grew up without my parents and was adopted. I promised myself that when I grow up, I will find the killer of my parents. The times when I couldn't stand the painful death of my parents, my schoolmate Baekhyun, would somehow keep me smiling. It's crazy because as much as I want to find my parent's killers, I want to let go, forgive, and leave all those painful memories behind. Falling in love and living a beautiful life is solely what I wish to do. Will falling in love with Baekhyun, my first love, help me move on to the life I wished to live in or will falling in love with him be my biggest mistake?