He Changxi, born on November 24, 1997 in Yueyang, Hunan, is a male singer and actor from Mainland China. He graduated from Beijing Modern Music Training Institute. At the beginning of 2019, he participated in the youth inspirational variety show "Youth with You" as a trainee, and finally became a member of the UNINE group with 9th place , thus officially debuting; on May 6, the group's first music was released with UNINE EP "UNLOCK"; On October 21, the group's second music EP "UNUSUAL" was released with UNINE. In September 2020, he joined the Tencent Video character competition reality show "Actors Please Take Your Place Season 2"; in October, his group UNINE officially disbanded after issuing graduation photos; on November 24, it was released His first EP "THE MAN".