Ryujin is a princess from the Korean royal family, you are the daughter of one of her maids, you have been friends since always even though she doesn't have as much money as you... but after a few years, you started to realize that you were falling in love. You started dating secretly, because you knew it wouldn't be seen well in society as two girls. One day, her parents say that she's going to marry the prince of Japan, an arranged marriage, she calls you to talk "Sit here..."