Trying to find a 2015(?) South Korean movie

Trying to find a South Korean movie that I once saw - I can only recall some details about it, and I believe it was released sometime between 2014-2016:

It’s basically about a woman in Seoul (?) who has a crush on her boss, named “Mr. Oh” and - like most Korean chick flicks, it involves him carrying her around piggypack in Seoul at nighttime while she’s drunk and takes her back to his apartment where she sleeps off the alcohol. Other scenes also involved her dealing with a rival (her other manager?) who is also going for Mr. Oh, and then at one point she gets her shoe stuck in a pavement rut and cannot get her shoe out.