黑白双龙

Mo Lang and Bai Qi grow up herding livestock in the kingdom of Niuzhan, one of them a troublemaker and the other a cold prodigy. A mysterious assassin out of Xuanwu turns their quiet corner upside down, and the two boys leave home on a dragon-hunting journey neither is prepared for. This ONA sits in the Scissor Seven world roughly twenty-five years before the main series, so it stands on its own rather than continuing Seven's story.