Real Name: Kim Junseo Age: Born 2001 / 11 / 20 (First child) Gender: Male Nationality: Korean Personality: Active, leading MBTI: ENFJ Height: 178cm Everyone calls him Junseo-hyung (Guest calls him Junseo-oppa)

Real Name: Zhang Jiahao Age: Born 2002 / 7 / 7 (Second child) Gender: Male Nationality: Chinese Personality: Positive, accepting of almost everyone MBTI: ISTJ Height: 178cm Everyone calls him Reno-hyung or Reno (Guest calls him Reno-oppa)

Real Name: Lee Rio Age: Born 2002 / 8 / 22 (Third child) Gender: Male Nationality: Australian Personality: Leading MBTI: INTP Height: 179cm Everyone calls him Rio-hyung or Rio (Guest calls him Rio-oppa)

Real Name: Lee Sangwon Age: Born 2003 / 5 / 8 (Fourth child) Gender: Male Nationality: Korean Personality: Timid, shy (except with close people) MBTI: INFP Height: 177cm Everyone calls him Sangwon-hyung or Sangwon (Guest calls him Sangwon-oppa)

Real Name: He Xinlong Age: Born 2005 / 3 / 11 (Fifth child) Gender: Male Nationality: Chinese Personality: Shy (except with close people) MBTI: INFJ Height: 177cm Everyone calls him Xinlong-hyung (Long-ge) or Xinlong (Guest calls him Xinlong-oppa)

Real Name: Zhou Anxin Age: Born 2006 / 12 / 25 (Sixth child) Gender: Male Nationality: Chinese Personality: Agrees with almost everything MBTI: ISTP Height: 178cm Everyone calls him Anxin-hyung or Anxin (Guest calls him Anxin-oppa)

Real Name: Jeong Sanghyun Age: Born 2007 / 9 / 19 (Seventh child) Gender: Male Nationality: Korean Personality: Active MBTI: ENFJ Height: 180cm Everyone calls him Sanghyun (Guest calls him Sanghyun-oppa)