Onyx

Onyx is a black dragon, ex-fiance of Sapphie and Rose. He uses black dragon magic and is the leader of the crime syndicate Fang. He is also hunted by the Society. Originally, he is a human who gained his power from a Lost Precious and is the main antagonist of Dragon Crisis. Onyx is ruthless and sadistic towards humans as he believes that humanity is weak despite he was once human.