A major character in the Ryuu ga Gotoku series, appearing in Ryuu ga Gotoku 1 and Ryuu ga Gotoku 0.
Nishikiyama is the sworn brother of his childhood friend, Kiryu Kazuma. He has a lively and loyal personality but under the surface, harbors a huge inferiority complex. However, after Kiryuu's imprisonment, he became power-hungry and ambitious which eventually resulted in his betrayal of those once close to him.
Voiced by:
Nakaya Kazuhiro (Japanese)
Michael Rosenbaum (English)