Male protagonist: Lord Zhan Han
Identity: The helmsman of the Zhan Empire, the legendary "Living King of Hell". Although he looks cold and violent on the surface, he actually suffers from severe insomnia and emotional disturbance. He can only sleep peacefully when he is around certain people.
The core secret: He is not in power just for wealth, but is chasing an old case and looking for a vague "voice" - that is the only warm comfort in the dark memories of his childhood.
Heroine: Yan Zhengling
Identity: Tough and intelligent perfumer/inheriter of traditional Chinese medicine. She looks gentle on the outside but is as stubborn as bamboo on the inside.
Core secret: She is born with a top-notch sense of smell and an "empathic" constitution, and can accurately sense the emotions and health of others through their breath. In an accident five years ago, she rescued a man who was seriously injured and had amnesia, and had a brief encounter with him. Later, she was forced to leave due to a family crisis and found out that she was pregnant.
Intention: Until one day, he smelled her special soothing incense. The lingering cold incense was exactly the same as the scent she left five years ago...