Kim Hyunjung was just walking home, minding her own business, when someone made her fall head over heels.  By crashing into her skull.   —   (or, a seolbo fallen angel×human au where Jiyeon was an angel, until she fell to Hyunjung. Literally.)      

In a world where soulmates exist but not everyone has one, Kim Jiyeon had forget-me-nots tattooed on her skin and a hope of someday meeting her other half— if she ever truly had one.     —   (or, a seolbo coffee shop/soulmate au where Jiyeon was a barista and Hyunjung was her new customer.)    

Kim Hyunjung wrote hundreds of letters— love letters— until she stopped. She now had a bunch of those unsent letters hidden inside a dusty shoe box. Until she met Kim Jiyeon, and she found herself writing one again.  — (or, a seolbo college au where Hyunjung secretly writes love letters to Jiyeon.)      

Kim Jiyeon thinks her doctor is definitely rude, arrogant a̶t̶t̶r̶a̶c̶t̶i̶v̶e̶, and completely lacking in bedside manner; and Kim Hyunjung despises having a celebrity patient, especially an annoying, insufferable i̶n̶s̶a̶n̶e̶l̶y̶ ̶p̶r̶e̶t̶t̶y̶ idol. (or, a seolbo au where Jiyeon is a soloist artist and Hyunjung is a doctor.)