NINE.i (나인아이) is a seven-member boy group under FirstOne Entertainment. Originally ten members, they debuted on March 30, 2022, with the mini album New World. Their name stands for “EVERYDAY NEW i.”

On March 15, 2024, the members, except for Eden, announced that they are currently in a legal dispute against FirstOne. As a result, group activities have been paused since 2024.