Idols and actors in the Joseon Dynasty?!

Yeo-ju briefly closed her eyes during class at school and opened them again, finding herself in the Joseon Dynasty. She was the king's only daughter. When she reached marriageable age, she caught a glimpse of her prospective brides, only to discover they were idols and actors in the real world....!! Since she had to get married, Yeo-ju decided to meet her future brides...