Soo Jin, a genetic researcher who loves DNA, decides to end her relationship with her playboy boyfriend and sets out to find a genetically compatible partner for a happy relationship. Which of the two men Soo Jin meets, obstetrician-gynecologist Yoon Yeo and firefighter Jang Hoon, will be her ideal husband? A captivating story intertwined with genetics! This story depicts the struggles, love, and daily lives of young friends.