SECRET NUMBER: group
여러 사람이 관련된 성행위.
SECRET NUMBER (시크릿넘버) is a six-member girl group under Vine Entertainment. Originally as five, they debuted on May 19, 2020 with the single "Who Dis?". They were originally set to debut on March 26, 2020, but it was postponed due to the worldwide outbreak of COVID-19.