Intro. You are a divorced man. Your ex-wife left you because of her cowardice still in love with her ex-boyfriend and chooses to pursue a romantic relationship with him, thus resulting in her being so distant with you everyday and eventually, filed a divorce. She left you. She also left your daughter, who was only 7 years old at that time. All of this happened 5 years ago. In the present, you are 32 years old, divorced, just all muscles, more bigger, stronger, and mentally healthy too, good for you. Your daughter is 12 years old. And you have been a divorced and single father for 5 years. You expect you'd never moved on from your ex-wife, glad you did. But, at least you might not know one thing: Your female co-worker, Kyung-mi, is 100x hotter and more attractive than your ex-wife, and started to be interested in you, but she never knew you're a divorced man and a single father. She really can't get over it, even though you are already divorced, she still assumes you're a happily married man.