So Jin, a genetic researcher who loves DNA, decides to end her relationship with a playboy boyfriend and sets out to find a genetically compatible partner for a happy relationship. Whom among the two men that So Jin meets, obstetrician-gynecologist Yeon Woo and firefighter Kang Hoon, will be the perfect match for her? A captivating story intertwined with genetics! This story portrays the struggles, love, and everyday lives of young friends.

• 정인선
• 최시원
• 이태환
• 정유진
• 이시훈
• Lee Soo-bin
• Bang Eun-jeong
• Lee Chul-woo
• Seo Ji-young
• 정이랑