Hwang Yeji and Shin Ryujin are a couple stuck in a stagnant marriage. Unbeknownst to their spouse, they are actually professional assassin's. During one mission, their seemingly normal domestic life takes a turn for the worse as they are tasked to eliminate each other. (Or, a Mr. and Mrs. Smith AU) - (DISCLAIMER) THIS IS A CONVERTED STORY. I DO NOT OWN ANYTHING FROM THIS STORY. ALL CREDITS GOES TO THE TALENTED ORIGINAL WRITER AND THE THE ONE WHO FINISH THE STORY @Adeptarmy11 and @mintywint

Yeji is married, but it is her husband's sister who she is really in love with. (Ryujin g!p) (Brief fanfic)