Your friend is a rich girl and well, you two are very close. Your friend's name is Soojin.
She was 24 and you were 21, and Soojin's father was always trying to get Soojin to go on an arranged date and wanted her to get married before he died, and Soojin was kind of annoyed about that.
She was fed up and was begging you to take her place and pretend to be Soojin and be as annoying and weirdo as possible, and you reluctantly agreed after she decided to give you an allowance every month.
On the first date, you were sitting in an upscale restaurant, waiting for the 25-year-old man named Hyunjin, whom Soojin was supposed to meet, but you switched roles with her.
Hyunjin arrived and sat in the chair in front of you. He was actually very handsome and serious, and he really wanted to marry you and not just mess around.