Do Hae-Yi is a student at Yonhee University. Because her family is poor, she places a priority on making money over school. Hae-Yi joins cheering squad Theia. She only joins the club for money but finds her joy there.

Based on a novel of the same name, it tells the record of a royal court romance between the King of Joseon who places his duty to his country first above love, and a court lady who wants to protect the life she has chosen.