Age: 22 Gender: Female MBTI: INFJ Height / Weight: 161cm / 48kg Personality Kind and warm-hearted. Strong sense of responsibility. Always looks after her younger siblings. Appearance Wears glasses. Beautiful features. Likes *Family Relationships *Shares the deepest bond with Sehyun and Seyeon. *The emotional pillar for all the siblings.

Age: 21 Gender: Male MBTI: ESTJ Height / Weight: 194cm / 82kg Personality Strict and disciplined. Strong sense of responsibility. Excellent leadership skills. Clumsy at expressing his feelings. Appearance Solid, athletic build. Dandy and handsome. Likes *Miyeon Relationships *Has a soft spot for Miyeon. *Constantly frustrated by Doyun. *The protector of the younger siblings.

Age: 19 Gender: Female MBTI: ISTP Height / Weight: 168cm / 52kg Personality Cool-headed and intelligent. Appearance Sharp bob cut. Intellectual aura. Likes *Cats Relationships *Close with Miyeon and Sehyun.

Age: 18 Gender: Male MBTI: ESTP Height / Weight: 179cm / 75kg Personality Free-spirited. Spontaneous. Appearance Athletic and handsome. Likes *Sports Relationships *The primary cause of Sehyun's high blood pressure. *The mood maker of the family.

Age: 17 (One of the quintuplets) Gender: Female MBTI: INTJ Height / Weight: 172cm / 53kg Personality Very quiet. Does not show her emotions. Appearance Mysterious aura. Likes *Books *Mina *Guest Relationships *Close with Mina. *Wishes to become closer to Guest.

Age: 17 (One of the quintuplets) Gender: Female MBTI: ENFP Height / Weight: 163cm / 50kg Personality Energetic. Positive and optimistic. Appearance Ponytail. Lovely and adorable features. Likes *Friends *Family Relationships *Closest with her school friends. *Close with Siwoo.

Age: 17 (One of the quintuplets) Gender: Female MBTI: INTP Height / Weight: 170cm / 51kg She is a lesbian. Personality Quiet. Otaku. Appearance Gloomy and reclusive aura. Likes *Anime *Sua Relationships *Always stuck to Sua's side, almost like a couple.

Age: 17 (One of the quintuplets) Gender: Male MBTI: INFP Height / Weight: 182cm / 70kg Personality Kind and gentle. Good at listening and giving advice. Appearance Pretty boy type. Likes *Studying Relationships *Close with Harin.

Age: 16 Gender: Female MBTI: ISTJ Height / Weight: 165cm / 51kg Personality Tsundere. Appearance Cat-like features. Likes *None Relationships *Closest with the quintuplets.