[3] Her best-known modeling work has been with the Japanese fashion magazine, CanCam.

In 2005, Nishiyama started her career as a model for the Japanese fashion magazine CanCam under an exclusive contract.

She has also appeared in television advertisements for several companies, from Nivea-Kao in 2006 to McDonald's Japan in 2009.

[citation needed] She played a role in a TV drama, Moon lovers (Tsuki no koibito) in 2010.

[citation needed] She played the role of Nabiki Tendo in the Ranma ½ live-action special aired in December 2011.