Go Hae Ri wakes up after being drugged, along with her NIS partners. And without knowing if an intruder is in the safe house, and without any thought of checking on Cha Dal Geon (who she is supposed to be protecting), she makes her way to the bathroom instead. No field agent would have ever done such a thing. Her primary job is to protect Cha Dal Geon, and yet she makes no attempt to do so until she finally hears the fight between Cha Dal Geon and the assassin. After waking up from being drugged, she would have made her way to Cha Dal Geon's room to check on him first. And she couldn't have been disoriented as she easily found the bathroom.