The leader of the black flames was Di Ying.
The leader of the black flames was Di Renjie's brother, Di Ying. In the play " The Case of Di Renjie of the Tang Dynasty," Black Flame played a key role in revealing the secret of Di Renjie's birth and the truth behind a series of cases. He was the leader of a powerful organization and was known as the Chief of Black Flame. Black Flame's true identity was Di Renjie's adopted son, a descendant of Li Jiancheng, a remnant of the previous dynasty. At the end of the plot, Di Renjie revealed the identity of the leader of the Black Flame and found out that the Black Flame was actually his brother, Di Ying. Therefore, he could confirm that the leader of the black flames was Di Ying.
The leader of the black flames was Di Ying. Di Ying was Di Renjie's older brother, Di Zhixun's adopted son, and also the descendant of Li Jiancheng, a remnant of the previous dynasty. In the movie, he became the leader of the Black Flame and created a series of cruel murders. However, at the end of the plot, Di Renjie revealed the identity of the leader of the Black Flame and found out that the Black Flame was actually his brother, Di Ying. Therefore, he could confirm that the leader of the black flames was Di Ying.
The leader of the black flames in the case of Duke Di of the Great Tang was a remnant of the previous dynasty, which was also the descendant of Li Jiancheng.
The leader of the Black Knights for more than a year is Jing Ge.
The leader of Qing Yu Nian's Black Knights was Wu Zhu.
In the novel " Celebrating Years," the leader of the Black Knights was Lord Shadow. Lord Shadow's real name was Xiao En. When he was young, he was the leader of the secret agents in Beiqi Kingdom. Later, he was sent to the Temple and became the Temple Envoy. After leaving the temple, he was taken in by Chen Pingping and trained into a warrior of sacrifice with strong martial arts. Chen Pingping placed the Shadow at the Qing Emperor's side and became a eunuch, responsible for secretly protecting the Qing Emperor. In the TV series, the leader of the Black Knights was Sigu Jian's younger brother, Yun Zhilan.
The leader of the Black Flame Bandits was Di Renjie's brother and Di Zhixun's adopted son. His name was Di Ying.
I'm not sure as it's a fanfiction. But it could be an original character created by the author who is somehow related to the black flames, like a person who has the power to control them.
It's hard to say for sure without reading it, but it could be Naruto himself as he often takes center stage in fanfictions. He might be the one trying to figure out the mystery behind the black flames.
The Black Dragon character in the TV series " The Blazing Martial Age " was played by actor Xu Zhengxi. Black Dragon was the ceiling of the show's combat power. He was a charming male god. Although there was a slight difference from the anime image, it was still pretty good overall and was not destroyed.