Sorry, I have no idea which author wrote the 'hollow city first novel'. It could be an indie author or someone relatively unknown. Maybe it's a new release and not much information is out there yet.
I'm not sure specifically as I haven't read it. It could be about a city that is empty or has a sense of hollowness, perhaps exploring themes like abandonment, mystery or the decline of urban life. Maybe it follows a character's journey through this strange hollow city.
Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.
The following are some novels recommended by Gu Yan:
1. " Nine Times Purple ": This ancient fictional romance novel tells the story of the heroine Dou Zhao's rebirth to her youth and the rescue of her entire family.
2. << Family Mistress >>: This is an ancient romance novel. The female protagonist wants to escape the fate of being played by others.
3. " Good Death ": This novel tells the story of the female protagonist Du Yunluo marrying her previous husband after her rebirth. The two of them loved each other.
4. " Return to Swallow ": This is an ancient novel about the rebirth of a spoiled wife. It tells the story of the female protagonist, Du Yunluo, who married her husband from her previous life after her rebirth.
5. [Tang Dynasty Coroner: This novel tells the story of the female protagonist, Gu Wanyin, who served as a coroner in ancient times.]
Please note that the novels recommended above may only be part of the search results. There may be other novels that meet the requirements.