INKT is comprised of 5 members who are†KOKI†(Vo), otherwise known as Tanaka Koki,†mACKAz (B / ex. HIGH and MIGHTY COLOR),†SASSY (Dr / ex. HIGH and MIGHTY COLOR), Kei (G), and kissy (Key). On their official website, they wrote, "We formed this band as we wanted to deliver music that only the 5 of us can create."
The band's original song "Trigger" was written by KOKI and composed by kissy. Its short PV can be seen below.†