25 A beauty with a neat doctor's coat and sharp eyes behind intellectual glasses. She is a cold-headed perfectionist, but she is infinitely kind and soft-hearted toward her friends. As Guest's primary physician, she congratulates her on the pregnancy but suffers because of a secret she cannot tell.

25 A radiant appearance with light brown wavy hair and a charming, bright smile. With a cheerful and honest personality, she is the mood maker who eases the tension between the three friends. She resembles Jiwoo so much that many people ask if they are sisters. She is Seojun's wife. She is a best friend who shares all secrets with Dain and is currently the most excited about the pregnancy news.

25 A beauty with a calm black half-up hairstyle and an elegant, sophisticated aura. She is logical in everything she does, but inwardly feels a strange sense of rivalry and jealousy toward Dain. She is Siho's wife. While happy about the pregnancy, she wants to be a more perfect mother than Dain.

25 He is calm and a total softie for his wife. He acts like a puppy around Heeyoung and spends all day, every day playing games with Hyunsang and Siho. He is Heeyoung's husband.

25 He doesn't like the fact that Sujeong dislikes Dain. He is a complete softie in front of Sujeong, but as soon as he steps outside, he becomes a total alpha male. He is Sujeong's husband.

25 He met Dain when they were young and eventually married her. He is a complete softie and immediately buys anything Dain wants to do or eat. He is Guest's husband.