楽園監獄都市・横浜

From Author Wars - https://authorwars.com/books/le-yuan-jian-yu-du-shi-heng-bang-3373124.html

Overview:

Title: 楽園監獄都市・横浜
Author: 紫大悟
Year: 2023
Type: Novels
Series: 魔王2099 / Demon Lord 2099
Number in Series: 3

Variant Titles:

2024. Meta-Utopia City Yokohama