The enemy she had been chasing for three years was sealed in the body of the person who held the lamp for her.
The demon exterminator of the Department of Demon Suppression heard about it and chased it for three years to find out the evil thing that killed his sister. In the past three years, clues that she could not find always appeared on her desk out of thin air late at night, holding an everlasting light.
She followed the light and found the head of Yan Qing, the youngest marquis in the dynasty. Word all over the city said that he was too weak to survive the winter.
"The evil thing you're looking for," he said, "is inside me."
She thought he was just a fellow sufferer. Until Xie Henglian's black lamp haunted the door, and the lamp in her arms suddenly brightened, suppressing the haunting thing inch by inch.
A lamp that calms evil spirits. A man who cannot survive the winter.
Yan Qing, who are you?
Intention: You thought you were walking alone at night, but actually someone held the lamp for you for three years.