She is Xuanwei Immortal, and she once stood side by side on the top of the world with her best friend Yun Zhao, experiencing life and death together and loving each other as brothers.
A well-planned "betrayal", her best friend's sharp blade pierced the immortal bone, and she fell.
When he opened his eyes again, he saw Xu Zhao, an ordinary girl from Blue Star - a top student, good-looking, nothing more.
It wasn't until she turned eighteen that the memory seal was loosened, and the dark alley demons attacked... She glimpsed the truth behind the collapse of this "ordinary" world: dark demons were raging, and civilization was in danger.
Entering the "Night Watch" academy that fights against dark demons, Xu Zhao relied on his academic master's mind and gradually reviving instincts to lead the team to ignite a spark in the darkness. She fights, grows, and protects her new home and partners.
However, the truth of past life "betrayal" is like maggots in the tarsal bones. When her memory was completely restored, she finally saw clearly the despair and sacrifice behind her best friend Yun Zhao's blood-stained hands - that was actually a glimmer of hope for her!
The dark demon craze is sweeping the world, and the way back is at hand.
Purpose: Guardianship across the world: ignite hope in understanding and sacrifice, and define new life in responsibility and integration.