Humans and demons coexist peacefully in the Xuanwu Kingdom.
Shenwu, a human girl. She regards men as dirt, but falls in love with the second prince of Xuanwu Kingdom, Qiandi.
Qiandi knew that his brother Qianye also liked Shenwu, so he gave Shenwu to Qianye.
Qianye is the eldest son and the king of Xuanwu.
On the day of the wedding, Shenwu panicked and killed Qianye by mistake.
The demon king was killed, and Shenwu was naturally hunted by the demons. An arrow shot through Shenwu's heart.
When he was dying, his cousin Suo Luo used the demon silk to connect Shen Wu's soul and body. But only by obtaining a thousand demon threads can he be completely resurrected.
With hatred for fairies, Shenwu came to the human world and changed her name to Yumei Ji, and joined the demon slayer group.
Qian Di awakened from two years of regret and pain and decided to go to the human world to find Shen Wu, but all he got was ruthless revenge from her.
When the thousand demon threads were found, Shen Wu went to Xuanwu Kingdom regardless of his fatal wounds.
When the knife was inserted into Qiandi's chest, the demonic thread in her heart broke, and she eventually died in his arms.
Qian Di held her in his arms and died instantly when he kissed her cold forehead.