ZEROBASEONE (제로베이스원), also known as simply ZB1, is a 9-member project group formed by MNET‘s survival show BOYS PLANET. The group consists of Sung Han Bin, Kim Ji Woong, Zhang Hao, Seok Matthew, Kim Tae Rae, Ricky, Kim Gyu Vin, Park Gun Wook, and Han Yu Jin. They are managed by WAKEONE Entertainment and their contract will last for two years and a half. They made their debut on July 10, 2023 with the mini album, ‘YOUTH IN THE SHADE‘.