It follows Mei Changsu, a strategist who enters the capital of the Liang Dynasty to overturn a miscarriage of justice laid upon his family as well as help his close friend become the new Emperor.
He and his cousin, Lin Shu, were very close friends, and when his comrade was labeled as a traitor, he was one of the only few people who voiced his objections, causing him to lose favor from the Emperor.
Li Gang serves as the housekeeper of the Su Residence, while Zhen Ping is a skilled swordsman who defeated nine martial arts experts sent by Zhuo Dingfeng in one day.
However, when Wei Zheng was later saved by Jiang Zuo Alliance, he was safely placed at the Mu Manor, and later Su Residence.
Mei Changsu had helped him avenge his late sister's death (by taking down Luo Zhi Jing), and therefore became a loyal follower.
However, he was seduced by Jun Niang and leaked information about Jiang Zuo Alliance's info-network and plans to Qin Banruo.
However, he is ruthless to achieve his goal, and with the help of Qin Banruo, he competes with his brother, Crown Prince Xian, to be the next in line to the throne.
The Emperor of Liang (梁帝), born Xiao Xuan (萧选) (played by Ding Yongdai)[5] held a rebellion to take the throne by force, with the help of Lin Xie, Marquis Yan and Hua Princess Linglong.
When he heard that Lin Xie and the Chiyan army were planning a rebellion, he immediately executed his old friend, his son and his subordinates.
Crown prince Xiao Jingxuan (萧景宣) (played by Gao Xin)[6] is the son of Noble Consort Yue.
Two decades ago, Li Yang fell in love with a Southern Chu hostage prince sent to Da Liang during a warring period.
After Xie Yu's exile and death, she kept his written confession to help Mei Changsu and Prince Jing reopen the Chiyan case.
However, she was demoted after the Emperor found out that she tried to use Qin Si Rao to force Princess Nihuang to marry Sima Lei, a Crown Prince supporter.
Prince Qi (祁王), born Xiao Jingyu (萧景禹) (played by Ji Chen) was the Emperor's eldest son.
Using the rift between the father and son, Xia Jiang framed the prince for conspiring with the Chiyan Army to hold a rebellion.
Prince Ji is a good friend of Yan Yujin, and unwittingly helps Mei take down Xia Jiang.
During the selection of Princess Nihuang's husband, Mei Changsu, with the help of Meng Zhi, managed to successfully earn the Emperor's permission for him to have his slave status lifted.
Xie Yu (谢玉) (played by Liu Yijun)[7] was a Minister who rose up the ranks after marrying Grand Princess Liyang.
Xiao Jingrui (萧景睿) (played by Cheng Haofeng) is the son of Grand Princess Liyang and the Southern Chu prince.
An honest and respectful man, it was he who invited Mei Changsu to stay at the capital, Jinling to recover from his chronic illness.
He was raised shielded from Xie Yu's evil ambitions, but as he found out about his father's true intentions, he began to worry about the future of his family.
Although he doesn't care much about politics, he and his father were willing to help Mei Changsu with his plan to make Prince Jing emperor as well as reopen the Chiyan case.
Although he is honest with adequate martial art skills, and is the heir to Mu Manor, he has an immature personality and doesn't care to be polite.
Because of his family's fighting power in the South, the Emperor uses him as a hostage; as long as Mu Qing stays the capital, he is sure his sister will not commit mutiny against him.
Meng Zhi is highly skilled in martial arts (best in Jinling and ranks second on the Langya List); even Mei Changsu's bodyguard, Fei Liu, cannot beat him.
Xia Jiang (夏江) (played by Wang Yongquan) is the leader of the Xuan Jing Bureau, and the main instigator of the Chiyan conspiracy.
Xia Jiang was later able to deduce that Mei Changsu was Lin Shu, and tried to use this information to bring down his enemies, but ultimately lost the Emperor's trust and was sentenced to death.
She is skilled in finding hidden objects or places, and runs an information network as well as an entertainment court, Hong Xiu Zhao, in the capital.
She was sent to seduce Tong Lu, but because she had fallen in love with him in the process, Banruo was able to continue to use Jun Niang for her future plans.
In the end, she sacrificed herself to let Tong Lu escape back to the Su Residence to tell the Mei Changsu that Prince Yu was planning a rebellion.