Shinji Kido is the main protagonist of the series Kamen Rider Ryuki. He is a compassionate and idealistic journalist who becomes Kamen Rider Ryuki to protect innocent people from the deadly Rider War. In the American adaptation 'Kamen Rider: Dragon Knight', Kamen Rider Onyx is the counterpart to Kamen Rider Ryuki, but in the original Japanese series, Shinji Kido embodies the character. Shinji struggles with the morality of fighting other Riders and seeks to end the conflict peacefully.