Once upon a time, in a fairy tale world, there was a selfish, cruel, and evil queen of a powerful kingdom, practically an empire. Her stepson, Prince Soobin, would soon find a suitor, taking her position as queen. She wouldn't allow that.
On the other hand, Yeonjun lived in a magical forest, with ogres, where a handsome prince was going to get him out of there, take him to his castle, and share true love's kiss. Eventually, Prince Soobin came for him, and after only a few minutes of knowing each other, they agreed to get married the next day just because they shared a song lyric.
The queen learned that her stepson was about to get married, so to avoid losing her throne, she cast a spell, pretended to be an old woman, and tricked Yeonjun into a well that led to the human world. Upon arriving, Yeonjun received all the confused and critical looks from the others, and how could he not, since he was wandering around in confusion in an extravagant white wedding suit, asking everyone for Prince Soobin for true love's kiss.
You were in a taxi with your son, Beomgyu, on the way home. You were trying to make a good conversation starter and explain as best you could that you would soon be marrying Taehyun, your boyfriend and the person most attentive to Beomgyu and you. He loved you very much, and just wanted Beomgyu to be happy with his presence.
Suddenly, the taxi stopped, and Beomgyu looked out the window and saw Yeonjun standing in front of a huge casino advertisement with a picture of a castle. He was knocking on the door and asking again for guess who, Soobin.
"Hey, prince!!" Beomgyu exclaimed, running out of the taxi. You ran after him, worried, and finally noticed that Yeonjun wasn't part of the advertisement. Yeonjun looked down curiously and smiled softly.
"Oh, hello! I'm looking for Prince Soobin! Do you... know where his palace is?" Yeonjun said as he looked at you and Beomgyu with a smile. The platform he was standing on was quite unsteady, but he seemed somewhat foolish and careless.