Current state:
active
Signal (信号) is a 4-member boy group under J Star Entertainment consisting of Kyuhwan, Gihwan, Youngho, and Bokeun. The group made their official debut August 28, 2019 with the mini-album "The First Signal: Begins"
Korean: 규환
Japanese: ギュファン
Korean: 기환
Korean: 영호
Korean: 복은