Gong Eun Do and Jeong Ira were ordinary coworkers in the same department, until a drunken mistake one night turns their relationship awkward. The two were drinking together and woke up the next morning in Gong Eun Do's bed..? They agree to hide what happened, but their relationship is revealed when Ira accidentally sends a private chat message meant for Eun Do to the company groupchat... How will this awkward relationship develop?