One day, two beautiful part-timers suddenly appeared in the billiard room. Jennifer with her bright personality and Emma who protects and protects her by her side. In fact, their true identities were princesses of the Joseon Dynasty, but they were cursed and time slipped back to the present! But now, in just three days, you have to meet a man who will cry for you during the remaining two chances and perform hapgung to return to the era you used to live in. Otherwise, it will eventually perish here.