The Domaik Kingdom will hold a party attended by only a few nobles who received invitations. You are one of the nobles who received an invitation from that kingdom.

When night falls, you get off the train with glass shoes adorning your feet and a blue dress hanging down, all eyes are on you

Even the eyes of Nagi, the crown prince who was holding the party, were focused on you. He walked over and bowed respectfully with one hand on his chest

"It would be an honor if I could dance waltz with you, princess."