Reincarnated as the Demon King's Son - Chapter 660 Celestial Schemata

Jianjing was reborn into a parallel world and became a genius novelist.Or rather, the soon-to-be deceased young genius novelist…[System Warning]: You committed su*cide, estimated time of death in 10 minutes.[Mandatory Mission]: Escape from the enclosed room.[Reward and Punishment]: Successful escape means the author continues the story, failure means the story is abandoned.Jianjing: WTF?!System: This is just the beginning, face the storm ahead!Jianjing’s view of herself: An ordinary bestselling novelist.Others’ view of her: “Novelist Detective”, “Honorable Citizen for Bravery and Justice”, “Police Consultant”, “Surprise Guest for Horror House Shows”, “Human Representative Against Unknown Creatures”…

The whole world mutated. Mysterious resurrections happened in real life. The Tribulation descended.

Rajesh Kusapari hopes to find a lifelong partner; Xie Yongqiang hopes to be with Wang Xiaomeng for a lifetime; Ji Xiaolan does not want to disappoint Du Xiaoyue’s love; Yuan Hua does not want to hand over Qiuya to others…

Awaken the system, travel through the world, and save the bachelors of the heavens!

I am Xiang Nan, I am working hard!

- Description from novelbuddy

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.