|This article is about a/an kaijin in Kamen Rider Black RX.|
- For the alternate Riders seen in Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle, see Bujin Riders.
A silver armored swordsman with ability to harness the sun's rays and use them as a weapon. He could also move through anything reflective. His mission was to steal something from Yousuke Morita, an old friend of Kohtaro's. After a brief fight with Bujin, Kohtaro learns the blueprints are for a laser the Crisis Empire wants to build. To get the blueprints from Kohtaro, Bujin uses Yousuke as a hostage and tricks Kohtaro into giving him the blueprints, which Kohtaro then reveals are fake. From there, RX battles Bujin until he used his Revolcane to destroy him.
Bujin's ability to travel through reflective surface's would later be fully utilized in Kamen Rider Ryuki.