Shinichi Kido

Shinichi Kido is Shinji's twin older brother. The two looked exactly the same but had different personalities; Shinji is a good hearted, friendly, but naive, Shinichi was more the rough kind. Nevertheless, they got along very well and were really close. However, one day, when a thug pointed his knife to Shinji, he died while protecting his younger brother. It turned out, though, that the thug was a person whom Shinichi fought before and was after him in the first place, and just got them mixed up due to his similarities.

Advent Calendar
After Shinji (as Ryuki) mistaken the Trick Vent clone of Kamen Rider Knight who died after a battle with Ouja, his love, anger and all of his sorrow his body possessed by the spirit of his late order brother, Shinichi Kido. Looking at the dead body of Ouja and Zolda (who also died after caught in the explosion of his own attack), Yui Kanzaki says he did it, and when doing so he and Dragredder had turned black means that now he is Ryuga. Ren shows up revealing that he was never here, the Knight that Ouja defeated was a copy made with Trick Vent. He and Shinji are the last two Riders remaining (Odin works as the Rider who only granting wish rather than fighting) and have to fight. With Shinichi emerge as the victor, Kamen Rider Odin was summoned while granting a wish which is to reviving all of the victims of the Rider War.

Forms
When possessing Shinji, he briefly baceme Ryuki before it's armor turned black meanings that it evolves into Ryuga.

Contract Monster


Modeled after a Chinese dragon and Ryuga's Contract Monster, Dragblacker is referred as the Darkness.