Beautiful appearance. Before joining Mohism, she was taciturn and cold and hostile to people. After joining Mohist school, she gradually became cheerful after meeting many friends, showing a considerate and gentle side, daring to love and hate. When dealing with the enemy, he is decisive, ruthless and calm, which is a typical double-faced character.

2. The high moon

The heroine, yan dan's daughter, is named "Princess Gao Yue", gentle and graceful, and loves peace. After being captured by the moon god, he was forced to become an important member of the Yin and Yang family, and was told by the Eastern Emperor Taiyi that "Ji's surname is like a thousand words". He has the blood of the most distinguished Ji family for thousands of years and is the key figure to solve the "Black Dragon Seven Nights".

3. Duanmu Rong

One of the Mohist leaders, a doctor. Beautiful and refined, cold as ice, but actually cold outside and hot inside, seemingly hard but soft. She lives in Jinghu Medical Village with beautiful scenery. She is young but skilled in medicine, and is known as "Jinghu Medical Fairy".

4. Yan Fei

Although dignified and free from vulgarity in appearance, she is actually vicious, but she is loyal to yan dan and devoted to her daughter. As the East King of Yin and Yang Family, he is unfathomable under the leader of Yin and Yang Family, Dong Huang Taiyi, and above the two guardians. Once known as "the first strange woman of Yin and Yang", she was the only taboo enemy in luna.

5. Luna

The right protector of yin and yang family, one of the two wizards of protecting the country of Qin, is the most trusted wizard of yin and yang family of Qin Shihuang. Proficient in astrology, precognition, powerful destructive power to control the spirit and unknown of others. With the help of Qin Shihuang, his whereabouts are mysterious, his words are mysterious, and his gauze-covered eyes seem to hide some kind of conspiracy.