NINE.i (나인아이) is a 10-member boy group under FirstOne Entertainment. They debuted on March 30, 2022 with the mini album New World.Their name stands for 'EVERYDAY NEW i'

Ⅰ (Part.1) is the second mini album by NINE.i. It was released on November 8, 2022 with "Young Boy" serving as the album's title track.

On July 16, 2023 they announced their 3rd mini album titled 'New Mind' will be released on August 3, 2023 at 12pm kst. This comeback will not feature member Winnie as it has been announced he went on hiatus for medical reasons. The comeback comes 8 months after I (Part.1). Stay Tuned for more updates!