Mr.Gu the story was really bad.He has bad temper and He protects his coworker then the female lead. Stopped watching after break up. He never understand or apologized to her. He thinks he is always correct. Female lead was very good acting when it’s her first time acting.He couldn’t confess his love easily and he breaks promise and he always with the coworker that likes him.He needs to protect the ones he love not the coworker that works with him. I wouldn’t recommend watching this drama it’s a waste of time.