Do Bong Soon and Ahn Minhyuk meet due to a series of events. They begin to fall in love, they date and they soon get married. The have a beautiful wedding with all their family and friends. Do Bong Soon is pregnant and has twin girls who were born with the superhuman strength. The kids slowly grow up and life seems to be normal until one specific person tells something to Minhyuk that makes him change his idea about himself and makes him question his decisions.