Jang Yejin is an adopted girl. She never know if she was adopted before someone made a rumor if she is adopted girl. Because of this person she is depressed with her life. She never talk to anyone and become a quiet girl. Never speak with her classmate. And her classmates thinks if she is an anti-social girl.

Can Jang Yejin figure out whats wrong with her?

How if she meet with that person again? The one who made Yejin depressed?