ZEROBASEONE (ZB1)

ZB1 (short for ZeroBaseOne; formed on Apr 21, 2023) is a 9-member multinational boy group under Wake One Entertainment formed on April 21, 2023, through the Mnet's reality show Boys Planet. The group will be promoting together for 2 years and 6 months.



Group Profile

• Number of Members: 9
• Members: Sung Han Bin, Zhang Hao, Kim Ji Woong, Kim Tae Rae, Han Yu Jin, Park Gun Wook, Kim Gyu Vin, Ricky, Seok Matthew
• Genre: Kpop
• Leader: Sung Han Bin
• Oldest Member: Kim Ji Woong (born Dec 14, 1998)
• Youngest Member (Maknae): Han Yu Jin (born Mar 20, 2007)
• Debut date: 2023
• Label: Wake One Entertainment
• Fandom: ZEROSE

ZEROBASEONE (ZB1) is composed of 9 members born between 1998 and 2007. Their ages ranged from 16 to 24 years old at the time the group was formed in 2023. The oldest member is Kim Ji Woong (born Dec 14, 1998). He was 24 years old at the time the group was formed. The youngest member is Han Yu Jin (born Mar 20, 2007). He was 16 years old when the group was formed in 2023. There is a gap of 8.5 years between the oldest member and the youngest member.



In terms of nationality, there are 3 foreign members and 6 Koreans. Sung Han Bin, Kim Ji Woong, Kim Tae Rae, Han Yu Jin, Park Gun Wook, and Kim Gyu Vin were born in South Korea. Zhang Hao and Ricky are Chinese. Seok Matthew was born in Canada; he is Korean-Canadian.

Regarding ZB1 positions, the only official position is the leader of ZB1 - Sung Han Bin. Despite not having official positions, Sung Han Bin, Zhang Hao, and Kim Tae Rae are considered part of the vocal line. Many of the members are also seen as all-rounders. These are Zhang Hao, Sung Han Bin, Park Gun Wook, Seok Matthew, and Ricky. Park Gun Wook, Kim Ji Woong, Kim Gyu Vin, Seok Matthew, and Han Yu Jin are part of the rap line.





All of ZB1 members have an extroverted personality except for Zhang Hao who is more introverted. About 4 of the 9 members are ENFJ, making it the most common MBTI type in the group.



• All members are born in the 2000s except for Kim Ji Woong, the oldest member of the group.
• As of April 2023, the average age of the members in the group is ~20 years old.
• The tallest member of ZB1 is Ricky with a height of 184 cm (6'0'').
• The shortest member of ZB1 is Seok Matthew who stands at a height of 170 cm (5'6'').

Kim Ji Woong is the oldest member of ZB1. He was 24 years old when he was participating in the show. He ranked 8th in Boys Planet. His MBTI is ENFJ. His hobbies are meditating and chatting. His specialty is to be able to bear hot things.



Zhang Hao is a Chinese trainee under YUEHUA Entertainment. He ranked first in the finale of Boys Planet. He became a contestant in the 2023 MNET survival show Boys Planet at the age of 22. He is the second oldest member of the group. Zhang Hao served as the center of the G group on the stage performance song 'Here I Am'. His MBTI is ISFP. He is from Fujian, China. His hobbies are food tours, swimming, walking, and travel. His specialties are violin and pitch.



Ranked 2nd in the final episode of Boys Planet, Sung Han Bin served as the center of the K group on the stage performance song 'Here I Am'. He was 21 years old when he was competing in Boys Planet (2023). His hobbies are writing, reading, and choreography. His specialty is he is good at using his arms when dancing. His MBTI is ENFJ.



Seok Matthew is Canadian-Korean. His hometown is Vancouver, Canada. He ranked 3rd in the finale of Boys Planet. He was 20 years old when he competed in the show. His hobbies include exercising, playing games, taking walks, and visiting restaurants by himself or with his friends.



Kim Tae Rae ranked 6th in the final of Boys Planet. He was 20 years old when he was competing in Boys Planet in 2023. His hobbies are playing the guitar and exploring restaurants. His specialty is creating lip triangles and adding chords to songs. He is confident about his hands. His role model is Taeyeong from NCT.



Ricky is a Chinese trainee under Yuehua Entertainment. Ricky was 18 years old when he was competing in Boys Planet in 2023. He stands at a height of 183.9 cm (6'0''). His hobbies include finding delicious food, producing, and playing basketball. His specialty is playing basketball. He can speak English, Chinese, and Korean.



Kim Gyu Vin ranked 7th in the final episode of Boys Planet. He is the third youngest member of the group. He was 18 years old when he was competing in the show. He trained for 3 years and 11 months prior to Boys Planet. His MBTI is ENFP. His hobbies are playing games and eating good food. His specialties are balancing, and losing on rock-paper-scissors.



Park Gun Wook ranked 5th in the final episode of Boys Planet. He is the second youngest member of ZB1. He was 18 years old when he was competing in Boys Planet. He was a contestant in the survival show Wild Idol. His hobbies include showing off his forearms, watching soccer games, eating chocolate, playing games, and taking walks. He can speak English and Korean.



Han Yu Jin ranked 9th in the final episode of Boys Planet. He was 16 years old when he was participating in Boys Planet in 2023. He trained for 2 years and 3 months prior to the show. His MBTI is ENFP. His hobbies are dancing, checking his cellphone, gaming, playing soccer, and eating tasty food.