[1] He was selected as a member of the Johnny's Jr. collective in 1997,[2] and subsequently made his major debut in 2004 as an actor and a singer with pop band News.
He also started playing major supporting roles on prime-time television dramas such as 1 Litre of Tears, Attention Please and Last Friends.
[5] He also starred in the detective drama Joker: Yurusarezaru Sōsakan and romantic comedy Full Throttle Girl in 2011.
From 2004 to 2011, Nishikido was active in both News and Kanjani Eight, releasing 9 studio albums and going on nationwide tours with both groups, which was unusual for an idol.
[6] Between 2012 and 2014, Nishikido took on leading roles in comedy-dramas such as the semi-autobiographical Papadol!, The Fortune Telling Shop, Onmyoya and Gomen ne Seishun.