Bitter Sweet Love

She has no father to call dad. She has no siblings to call brother. A girl with hardly any siblings. The smiling angel Choi Mi So.
Even if I am lonely, I stopped crying when I turned 12. Becasue WooJin oppa came into my life. However, there is a secret behind her smile. She isnt close with her mother? But she is close with the love of her life, Woo Jin Oppa? Then what about her boss? Yu Ri? Why is my life so difficult and complicated? I'm only 17 years old!!