If helping others was a sport, Yoon Sera would have won a gold medal and represented the country for the Olympics.

As a class representative, she had always made sure that everyone was welcomed and taken care of to make up for the lack of support and care she had with her adoptive family. All she wanted was a life where she can assist others and be simply appreciated for it; no fuss, no complications.

Unfortunately, two of her classmates, the honor student Cha Eunwoo and the star athlete Moon Bin, are not there to make things easier for her.