[Light Novel] How to start the Demon King (8 books)

Publisher: Kil Time Communication
Author: Laughing Yakan, Shindo Arata
Size: 128mm x 182mm
Number of books: 8
Language: Japanese
Category: Light novel, manga
Latest release date: 2023-12-13

Synopsis:
The only old man who keeps digging the underpass silently. Its appearance suddenly transforms into a young man who shines his eyes. -The name is Oulu. After a life -spoken study, he finally got the qualification to be the "Demon King"! When he contracts with Succubus beauty, Lill, he will embark into the creation of a vast dungeon that will become his own land. ! Dark fantasy & Harlemloman begins here!