The reason for the disbandment is: because the original setting of this boy group was that it was a limited group at the beginning, and it would have to be disbanded when the time came. That is to say, the life span of the group is limited, and the group's activity time is only one and a half years before it is disbanded. Because most of the nine members are still in groups at their original agencies, becoming members of ninepercent will not affect their previous work and activities. Ninepercent is an idol boy group formed by "Idol Producers", which is composed of one hundred trainees who have been selected through a full elimination system, plus specialized targeted training, and finally the nine with the highest votes are selected through voting.

Officially debuted on April 6, 2018. The boy group consists of Cai Xukun, Chen Linong, Fan Chengcheng, Huang Minghao, Lin Yanjun, Zhu Zhengting, Wang Ziyi, Xiaogui Wang Linkai, and You Changjing. On October 6, limited boy group NINEPERCENT officially disbanded.

At around 24:00 on October 6, Cai Xukun, Chen Linong, Fan Chengcheng, Huang Minghao, Lin Yanjun, Zhu Zhengting, Wang Ziyi, Xiaogui Wang Linkai, and You Changjing all posted the same photo of the nine of them and wrote "Forever". This also announced the official disbandment of the limited boy group NINEPERCENT. Cai Xukun's early life

Cai Xukun was born in Zhejiang in 1998. His father was from Wenzhou, Zhejiang, and his mother was from Hongjiang, Huaihua, Hunan. During his childhood, he lived and studied in Huaihua, Hunan. Cai Xukun’s primary school was at Hexiang School in Huaihua City, and his secondary school was at Shenzhen Nanshan District Second Experimental School. After that, he chose to study abroad. In 2011, he co-hosted the launching ceremony of the "Song of the Red Scarf" National Children's Excellent Choral Song Collection and Exhibition event with CCTV host sister Ju Ping.