There is an evil terrorist organization that is a messenger of darkness, specializing in assassinating powerful high-ranking officials and their opposing organizations. Anyone who receives a 'black letter' will die under the assassin's knife.They are called the Shadow Organization, and the only one who can confront them to this day is the Dragon Clan. The descendants of the Dragon Clan all have dragon seals on their bodies. In a battle, the Dragon Clan's warriors were defeated by the Assassins of the Shadow and chased to the cliff. storyThe protagonists Ling Dong (played by Wang Juntang) and Ling Feng (played by Chen Junlong) fight against the assassin. During the battle, Ling Dong is assassinated by the assassin for rescuing Ling Feng, and on his deathbed, he demands that Ling Feng continue the mission of the dragon clan and protect Ling Yun (played by Chen Huojin)）. Ling Yun was also brought back to the Shadow Organization by the assassin Heisha, and Guimian couldn't understand why he brought the descendants of the Dragon Clan back to the organization without destroying his roots. The Black Sha wanted to control the people of the Dragon Clan and enjoy themselves, but Ling Feng woke up to find himselfBodhi Temple, Master Minghuo, teaches Ling Feng that tolerance and love are the greatest powers that can influence everything that is not right and all sentient beings.