Conditions for a dating visa

"So, did you sleep with that guy or not?" After being betrayed by her former boyfriend, Yoo Byeol decided to take a trip alone to Spain, where she encountered a man named Sunwoo and ended up spending a questionable night with him. She believed she would never see the man who made such a significant impression on her again... However, she unexpectedly runs into him back in Korea—at her own workplace, no less?! To complicate matters, her ex is also employed at the same company...?!