Yuxing: Main Character
- Chen Mu Dan: First Lifetime
- Lu Mingxian: Second Lifetime
- Luo Na Li: Third Lifetime
- Li Rongxin: Fourth Lifetime
- Yong He: Alias in Huanjue Feng (Demon City)
Yang Zi Huo: Male Lead/MC Love Interest
- Wu Yi Huai: First Lifetime
- Kong Shuguang: Second Lifetime
- Lu Kai: Third Lifetime
- Kai Xiu: Alias in Huanjue Feng (Demon City)
Wu Jing: YZH's ally and friend from Third Lifetime, Captain of Night Ravens, harbors feelings for Yuxing
Gao Yi Fei: Kong Shuguang's Senior Sister from Second Lifetime. Yuxing's old friend, Sect Leader of Invigorating Essence, phenomenal healer, a renowned beauty of Jianghu
Qin Yu (Xiao Qing): Yuxing's friend, may or may not like Yuxing romantically
Ming Yan: YZH and Yuxing's friend, also a beauty of Jianghu, Head Physician of Bleak Night
Ji Nian: Yuxing's Soul Case Manager
Grandma (Guo Nai Nai): Yuxing's caretaker from First Lifetime and only Underworld family member
Gu Yi: YZH's assistant at Bleak Night, Yuxing's friend
First Lifetime
Lu Li: Ninth Princess
Li Xiao: Wu Yi Huai's friend and partner at the Ministry of Justice, previously Wu Yi Huai's father's henchman
Chen Murong: Adopted son of Lu Li
Xue Meng: talented zither musician, suspect of red light district murders
Liu Que: server at Fengyu Restaurant, in love with Xue Meng
Second Lifetime
Teacher Lu Hong: Mingxian's Master, taught her medicine
Xiao Wei: new disciple of Teacher Li Hong, Mingxian's junior
Third Lifetime
Zhao Bao Bai: Sect Leader of Crimson Snow Valley, Luo Na Li's Master
Senior Yue: Luo Na Li's senior at Crimson Snow Valley
Xiao Feng: Village girl who befriends Lu Kai and Luo Na Li in the Third Lifetime, almost married Lu Kai, mother of Xiao Qing
Fourth Lifetime
Chun Mei: Li Rong Xin's cousin/adopted sister
Ying Jun: Village friend Rong Xin grew up with, has feelings for Chun Mei
Aunt Tongfua
Uncle Haozhi
Others:
Sharp: Ghost Black Market Merchant
Chuju: Yuxing's friend and previous maidservant
Zi Xue: Snow Demon at Withering Snow Inn in Huanjue Feng (Demon City)
Yan: Tree Demon who befriends Yang Zi Huo in Huanjue Feng (Demon City)