Travelling Alone on the Road of Redemption. He is- Shin! Riderman!
Lockseed: Pinecone [Hacked]
Name: Joji Yuki
Bio: A refugee from another dimension, Joji Yuki was once a scientist that worked for Dai-Shocker. But his loyalty was betrayed when he lost his arm as punishment for a crime he didn't commit; betraying the secrets of Dai-Shocker. Instead of dying from his wounds, Joji survived the ordeal and swore revenge on the man that took his arm; Tsukasa, aka Kamen Rider Decade. But when he found the man that took his arm, he instead took pity on the depressed Tsukasa and aided in his escape. However, he did not die, instead retreating to a World that was unfinished; Gaim's world. Now he walks the lonely path of a Kamen Rider in a world teetering on the brink of the apocalypse.
Unlike the Armored Riders, Shin Riderman does not actually transform into his Rider Form, instead having to put it on like a costume. Physically he is no different from an average human being, only relying on his fighting skills and interchangeable arms. However, he has access to a Hacked Pinecone Lockseed, which allows him to access the power of the Lockseed without actually having to transform, the Lockseed's energy instead powering his Blaster Arm.