Prince Su Yang wants his daughter to marry Kim Jong Seo’s son, Seung Yu, for political unity.

Se Ryung and Princess Kyung Hye switch places so that both may get a glimpse at Seung Yoo

Princess Gyeong Hye tells Se Ryeong that Kim Seung Yu is going to marry her and that she shouldn’t see him anymore.

The ruse is revealed, and tensions between the cousins arise when the King chooses Seung Yoo as Kyung Hye's betrothed

Prince Su Yang finds out that Se Ryeong pretended to be the princess and met with Seung Yu.

Se Ryeong apologizes to Seung Yu and tries to tell him how she feels about him.